MATTER, Front. FRONT MATTER. GERVASI: Jurnal Pengabdian kepada Masyarakat, [S. l.], v. 2, n. 1, 2018. DOI: 10.31571/gervasi.v2i1.835. Disponível em: https://journal.upgripnk.ac.id/index.php/gervasi/article/view/835. Acesso em: 6 jun. 2025.