Analysis of the Application of the Principles of the Cooperative Law Environmentally Friendly in Coffee Agricultural Products (Case Study of Solok Radjo, Solok Regency). JED [Internet]. 28 November 2022 [dikutip 31 Juli 2026];7(4):452-61. Tersedia pada: https://journal.unismuh.ac.id/index.php/jed/article/view/9102