ERNITA, Yuni; GUNA, Rika Ampuh Hadi; SANTOSA, Santosa; NOFIALDI, Nofialdi. Analysis of Cocoa Industry Development Factor with System Approach in West Sumatera, Indonesia. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 36, n. 3, p. 122–133, 2017. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/8192. Acesso em: 13 sep. 2025.