SIALLAGAN, Y. O. .; SARAGIH, N. F.; HUTAPEA, J. M. . IMPLEMENTASI CUSTOMER RELATIONSHIP MANAGEMENT(CRM) PADA TOKO ROTI GANDA BERBASIS WEB. METHODIKA: Jurnal Teknik Informatika dan Sistem Informasi, [S. l.], v. 6, n. 1, p. 6–13, 2020. Disponível em: https://ejurnal.methodist.ac.id/index.php/methodika/article/view/247. Acesso em: 5 dec. 2025.