Friedrich, C. and Visser, K. (2005) Editors, South African Entrepreneurship Education and Training, Leap Publishing, Cape Town, South Africa.
Friedrich, C., Visser. K., Isaacs. E., May, C., Stoltz, A., Brijlal, P., Solomon, G. (2005) Leading Small, Medium and Micro Enterprise Service Providers in South Africa (ISBN: 1-86808-601-1). University of the Western Cape, Bellville, South Africa.
Krauss, S. I., Frese, M., Friedrich, C., Unger, J. (2005), Entrepreneurial Orientation: A Psychological Model of Success Among Southern African Small Business Owners, European Journal of Work and Organizational Psychology.
Friedrich, C. and Visser, K. (2006) The challenges of Entrepreneurship Education at University, in Galbraith, C. S. and Stiles, C. H. Editors, Elsevier Sciences: Developmental Entrepreneurship: Adversity, Risk, and Uncertainty, Wilmington, North Carolina.
Isaacs, E. and Friedrich, C. (2006) HIV/AIDS, Crime and Small Business in South Africa, in Galbraith, C. S. and Stiles, C. H. Editors, Elsevier Sciences: Developmental Entrepreneurship: Adversity, Risk, and Uncertainty, Wilmington, North Carolina.
Friedrich, C., Glaub, M., Gramberg, K., Frese, M. (2006) Does training improve the business performance of small scale entrepreneurs? Journal of Industry and Higher Education, London.
Isaacs, E. and Friedrich, C. (2007) Crime and HIV/AIDS in the Western Cape: Business support organizations and business owners’ perception. African Journal of Business Management page 8-18. South Africa.
Mentoor, E. and Friedrich, C. (2007) Is entrepreneurial education successful at South African universities? An empirical example. Journal of Industry and Higher Education. London.
Frese, M. Krauss, S. Keith, N. Escher, S. Grabarkiewicz, R. Lumeng, S. V. Heers, C. Unger, J. and Friedrich, C. (2007). Business Owners’ action planning and its relation to business success in three African countries. Journal of Applied Psychology. Vol 92. No. 6. 1481-1498.
Isaacs, E. Visser, K. Friedrich, C. Brijial, P. (2007). Entrepreneurship education and training at the Further Education and Training (FET) level in South Africa. South African Journal of Education. Vol.27: 613-629.
Brundin, E. Wigren, C. Isaacs, E. Friedrich, C. Visser, K. (2008). Triple Helix networks in a multi-cultural context: Triggers and barriers for fostering growth and sustainability. Journal of Developmental Entrepreneurship.
Friedrich, C. (2009) Hessische Verwaltungen nutzen das Ideenmanagement weniger. Innovative Verwaltung. 3/2009. Gabler Verlag, Wiesbaden.
Friedrich, C. (2009) Was können Verwaltungsmanager von erfolgreichen Entre/Intrapreneuren lernen. In: Heinrichs, M. und Marschall, K. Wege zu einer Intraprneurship orientierten Verwaltung. Europäischer Hochschulverlag.
Isaacs, E. and Friedrich, C. (2010) SME Performance-results from a longitudinal study. Journal of Industry & Higher Education. Vol 24, No. 1. Page 63-69. London.
Friedrich, C. and Isaacs, E. (2010) Service Delivery to SMMEs. South Asian Journal of Management.Vol 17, Issue No. 1. Page 7-22. Hyderabad, India.
Isaacs, B.H. and Friedrich, C. (2011) Family Business Succession: Founders from Disadvantaged Communities in South Africa. Journal of Industry and Higher Education. Vol.25. Issue No 4. Page 277-288. London.
Abrahams, F., Friedrich, C. and Tredoux N. (2012) Selection of postgrade students in a South African management programme. How effective is the general reasoning test? Journal of Industry and Higher Education. Vol. 26, No 2. pp1-11. London.
Solomon, G., Frese, M., Friedrich, C., Glaub, M. (2013) Can personal initiative training improve small business success? A longitudinal South African evaluation study. International Journal of Entrepreneurship and Innovation. Volume 14, No. 4. Page 255-268. London.
Basardien, F., Friedrich, C. and Parker, H. (2013) The relationship between planning strategies and entreprenerial success for start up entrepreneurs in the Western Cape: a psychological approach to entrepreneurship. International Journal of Entrepreneurship and Innovation. Volume 14, No. 4. Page 281-288. London.
Basardien, F., Parker, H., Bayat, M. S., Friedrich, C., Appoles, A. (2014) Entrepreneurial orientation of Spaza shop entrepreneurs. Singaporean Journal of Business Economics and Management Studies. Vol. 2, Page 45-61.
Frese, F., Hass, L., Friedrich,C. (2016) Personal initiative training for small business owners. Journal of Business Venturing. 5 (2016) 27-36. Elsevier.
Friedrich, C. (2016) Inclusive Entrepreneurship (Editor). Journal of Entrepreneurship and Innovation in Emerging Economies (EIE). Special Issue. June 2016. Sage Publication.
Basardien, F., Friedrich, C., Twurm-Darko, M. (2017) Evidence based best practice of promoting entrepreneurship education in higher education institutions in Africa. Journal of Economics and Behavioral Studies. Vol. 8. No. 5, pp 68-81.
Jacob, G. H., Frese, M., Krauss, S. I., & Friedrich, C. (2019, March 4). On the Importance of a Motivational Agency Variable: Being a Formal Business in Developing Countries Is Only Helpful for Growth if Business Owners Show a High Degree of Personal Initiative. Journal of Applied Psychology. Advance online publication. http://dx.doi.org/10.1037/apl0000398.