1.
Bernadetha Nadeak. The Effectiveness of Distance Learning Using Social Media during the Pandemic Period of COVID-19: A Case in Universitas Kristen Indonesia. IJAST [Internet]. 2020May16 [cited 2024Apr.19];29(7):1764 -1772. Available from: http://sersc.org/journals/index.php/IJAST/article/view/16270