CUSTOMER RELATIONSHIP MANAGEMENT (CRM) UNTUK PENINGKA-TAN PENJUALAN HASIL UMKM BADAN USAHA MILIK DESA (BUMDES) (StudiKasus : BUMDES Desa Apar Kota Pariaman). JOURNAL OF SCIENCE AND SOCIAL RESEARCH, [S. l.], v. 4, n. 3, p. 312–319, 2021. DOI: 10.54314/jssr.v4i3.697. Disponível em: https://jurnal.goretanpena.com/index.php/JSSR/article/view/697.. Acesso em: 15 apr. 2026.