Yastin, Yulindah, and Joko Sutrisno. 2018. “IMPLEMENTASI SISTEM INFORMASI PENJUALAN WALLPAPER BERBASIS ONLINE STUDI KASUS: KEYLA WALLPAPER”. IDEALIS : InDonEsiA JournaL Information System 2 (4), 74-78. https://jom.fti.budiluhur.ac.id/index.php/IDEALIS/article/view/1330.