Nugraha FW, Jumasa HM. COMPARATIVE ANALYSIS OF USABILITY LEARNING MANAGEMENT SYSTEM IN POLITEKNIK LAMANDAU. jitk [Internet]. 2020Aug.1 [cited 2026Mar.4];6(1):101-6. Available from: https://ejournal.nusamandiri.ac.id.103-80-238-135.cpanel.site/index.php/jitk/article/view/1394