Wandela RS, Elisa E. RANCANG BANGUN SISTEM INFORMASI ADMINISTRASI PELANGGAN FITNESS BERBASIS WEB. comasiejournal [Internet]. 2019Nov.28 [cited 2024Jul.3];1(01):112-21. Available from: https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/1569