Nzereogu , D. C. and Asuk, C. O. . (2020) “THE DIFFUSIONIST THEORY AND FOOD-PRODUCTION IN PRE-COLONIAL WEST AFRICA”, Academic Journal of Current Research, 7(2), pp. 20–23. Available at: https://cirdjournals.com/index.php/ajcr/article/view/396 (Accessed: 20 May 2026).