M. S. Anam, J. Hadi Susilo, H. Astuti, E. Endang, and P. A. . Arifin, “Analysis of Price Fluctuation Factors and Production Costs on The Farmers’ Terms of Trade in South Sumatra Province, 2010–2024”, JABTER, vol. 5, no. 4, pp. 711–722, Apr. 2026.