S. A. Sarpong, D. Asare-Kyei, F. Addae, and D. M. Yanchira, “Variability of Maize Prices in Ghana: A Generalized Additive Mixed Model Approach: Variability of Maize Prices in Ghana: A Generalized Additive Mixed Model Approach”, IJID, vol. 4, no. 1, pp. 43–57, Jun. 2026.