PURWANTO, Heri; ISWAHYUDI, Amartya F; PIROUS, Haikal; INDRAWATI, Dewi. Penerapan Sistem Informasi Electronic Costumer Relationship Management. INTERNAL (Information System Journal), [S. l.], v. 4, n. 2, p. 113–122, 2021. DOI: 10.32627/internal.v4i2.401. Disponível em: https://jurnal.masoemuniversity.ac.id/index.php/internal/article/view/401. Acesso em: 10 nov. 2026.