SAPRISUL, and Ganda Sirait. 2022. “PERANCANGAN PENGUKURAN KENYAMAN KEPUASAN PELANGGAN DALAM BERBELANJA DI GUARDIAN BATAM”. Computer and Science Industrial Engineering (COMASIE) 7 (3):59-66. https://forum.upbatam.ac.id/index.php/comasiejournal/article/view/5955.