Ahmad Masrud Mubarok, and Eva Handriyantini. “Perancangan Aplikasi Online Course Menggunakan API Midtrans Sebagai Payment Gateway Berbasis Android”. Prosiding SISFOTEK 5, no. 1 (September 25, 2021): 83 - 88. Accessed January 24, 2022. http://seminar.iaii.or.id/index.php/SISFOTEK/article/view/263.