HAMDAN AZHAR SIREGAR; OTOM MUSTOMI; UNTORO; NUR AIDAH. THE ROLE OF COOPERATION AGREEMENT IN PARTNERSHIP SYSTEM TO IMPROVE INDONESIAN COOPERATIVE BUSINESS COMPETITIVENESSIN THE NATIONAL ECONOMY. JournalNX - A Multidisciplinary Peer Reviewed Journal, [S. l.], v. 6, n. 06, p. 355–361, 2021. Disponível em: https://repo.journalnx.com/index.php/nx/article/view/1268. Acesso em: 10 mar. 2025.