Michael, Sean, and Magdalena A. Ineke Pakereng. “INFORMATION SYSTEM VALENT FOR PT ENSEVAL PUTERA MEGATRADING ON MOBILE USING EXPO”. Jurnal Pilar Nusa Mandiri 16, no. 2 (September 15, 2020): 183–190. Accessed January 12, 2026. https://ejournal.nusamandiri.ac.id/index.php/pilar/article/view/1499.