Kholil, Ishak, Nico Dias Palasara, Muhammad Tabrani, and Alfiah Nur Hudayani. 2021. “Implementasi E-Swimming Course Pada Usman Harun Sport Center”. Prosiding Seminar Nasional Teknoka 5 (January):73-78. https://journal.uhamka.ac.id/index.php/teknoka/article/view/10228.