Purwaningtias D, Firmansyah Y, Safitri E. PROTOTIPE SISTEM INFORMASI CUSTOMER RELATION MANAGEMENT BERBASIS WEBSITE STUDI KASUS PT TRI MANDIRI SEJATI. JASIEK [Internet]. 2019 Dec. 16 [cited 2026 Aug. 7];1(2):161~169. Available from: https://jurnal.unmer.ac.id/index.php/jasiek/article/view/3485