Mardiani R, Nurul Azhar R. OVERCOMING CHALLENGES IN VIRTUAL CLASSROOM TO MAINTAIN EFFECTIVE CLASSROOM MANAGEMENT AND CLASSROOM CULTURE: A CASE STUDY AT ONE VOCATIONAL SCHOOL. JSISCH [Internet]. 2021 Dec. 25 [cited 2026 Mar. 15];7(2):99-109. Available from: https://www.journal.unpas.ac.id/index.php/sampurasun/article/view/4635