Helentina Situmorang, Misfit Putrina, and Noveri. 2022. “Analysis of Factors Affecting Cocoa Production in Lareh Sago Halaban District, Lima Puluh Kota Regency,West Sumatera, Indonesia”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 63 (2):264-68. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/14460.