GUNADI, W. PEMBERDAYAAN KOPERASI. JURNAL ILMIAH M-PROGRESS, [S. l.], v. 8, n. 2, 2018. DOI: 10.35968/m-pu.v8i2.234. Disponível em: https://journal.universitassuryadarma.ac.id/index.php/ilmiahm-progress/article/view/234. Acesso em: 9 nov. 2025.