Osoro, Otieno, Stephen Kirama, and Patrick Vermeulen. “Factors Affecting Engagement and Commercialization Of Innovation Activities of Firms in Tanzania”. UDSM Online Journal Testing 4, no. 1-2 (December 31, 2014): 73–90. Accessed April 19, 2025. http://testojs.udsm.ac.tz/index.php/ter/article/view/11.