Darmadi, Herru, Yan Fi, and Hady Pranoto. “Evaluasi Aksesibilitas Learning Object Berdasarkan Web Content Accessibility Guidelines 2.0”. Ultimatics : Jurnal Teknik Informatika 9, no. 2 (September 22, 2017): 67-71. Accessed May 2, 2024. https://ejournals.umn.ac.id/index.php/TI/article/view/602.