Hepelwa, Aloyce, Onesmo Selejio, and John Mduma. “Voucher System and Agricultural Production in Tanzania: Is the Adopted Model Effective? Evidence from Panel Data Analysis”. UDSM Online Journal Testing 7, no. 1-2 (December 31, 2017): 55–71. Accessed April 19, 2025. http://testojs.udsm.ac.tz/index.php/ter/article/view/27.