ULA, Muhammad; GATA, Grace. SISTEM INFORMASI PENJUALAN PASIR PADA PANGKALAN RIO PUTRA. IDEALIS : InDonEsiA journaL Information System, [S. l.], v. 1, n. 4, p. 284–289, 2018. Disponível em: https://jom.fti.budiluhur.ac.id/IDEALIS/article/view/1172. Acesso em: 29 apr. 2025.