Utami, Santi, and Pipit Utami. “Peningkatan Partisipasi Belajar Dan Hasil Belajar Peserta Didik Teknik Audio Video Di Masa Pandemi Covid-19 Dengan WhatsApp Group”. Elinvo (Electronics, Informatics, and Vocational Education) 5, no. 1 (May 22, 2020): 75–88. Accessed June 2, 2025. https://journal.uny.ac.id/index.php/elinvo/article/view/34254.