BENY, M. RIZA, and DAVID. “EVALUASI WEBSITE E-TICKETING DENGAN MENGGUNAKAN METODE USABILITY TESTING DAN WAMMI”. Jurnal PROCESSOR, vol. 13, no. 2, Oct. 2018, pp. 1287-04, https://ejournal.unama.ac.id/index.php/processor/article/view/458.