Konkombo, N.; Tham-Agyekum, E. K.; Osei, C. .; Bakang, J.-E. A.; Ankuyi, F.; Jones, E. O.; Arhin, M.; Asiedu, P. Cocoa Farmers’ Willingness to Pay for Improved Extension Services in Ghana. JEE 2025, 35, 7044-7059.