Amani Joseph Mwakalobo, Neema Peter Msuya, Baraka Emmanuel Mhando, and Rehema Daniel Mtemi. “Beyond Fertilizer Alone: How Extension Access Shapes the Productivity Payoff of Tanzania’s Fertilizer Subsidy Program”. Journal of Economics Business Industry 4, no. 1 (August 31, 2026): 28–41. Accessed September 17, 2026. https://jurnaljepip.com/index.php/Jebin/article/view/344.