ZULFIANDRI, Zulfiandri; MAARIF, M. Syamsul; HERMAWAN, Aji; HARDJOMIDJOJO, Hartrisari. The Transformation Process of Cocoa Farmers Groups to Agro-industry Groups in Indonesia: a Soft System Methodology Approach. International Journal of Sciences: Basic and Applied Research (IJSBAR), Jordan, v. 31, n. 1, p. 1–30, 2017. Disponível em: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/6715. Acesso em: 9 feb. 2026.