Wandela, Rido Sepka, and Erlin Elisa. “RANCANG BANGUN SISTEM INFORMASI ADMINISTRASI PELANGGAN FITNESS BERBASIS WEB”. Computer and Science Industrial Engineering (COMASIE) 1, no. 01 (November 28, 2019): 112–121. Accessed November 22, 2024. https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/1569.