Manik, S. A.; Sinaga, R.; Marbun, J. A.; Ningtias, F. I. Analysis Of Factor Affecting Cocoa Farmers’ Income in Nagori Pinangratus, Jorlang Hataran District, Simalungun Regency. JIA 2026, 8 (1), 420 – 431. https://doi.org/10.36985/9f3azj50.