YOLANDA, AGNITA, Novi Ismaya Br Saragih, and Nurislimida Nurislimida. 2021. “Efektivitas Komunikasi Melalui Google Classroom: Communication Effectiveness Through Google Classroom”. BISMA Cendekia 1 (2):75-80. http://ojs.politeknikcendana.ac.id/index.php/bisma/article/view/23.