1.
Awalia DH, Setiadi D, Kusmiyati K. Analysis of e-learning problems during covid-19 pandemic. J. Pijar.MIPA [Internet]. 2021 Nov. 17 [cited 2024 Nov. 22];16(5):631-5. Available from: http://jurnalfkip.unram.ac.id/index.php/JPM/article/view/3000