2022. 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 (Jurnal Etika Demokrasi). 7, 4 (Nov. 2022), 452–461. DOI:https://doi.org/10.26618/jed.v7i4.9102.