Valentina Dyah Arum Sari, and Heribertus Binawan. 2022. “FCAM: COMBINATION OF FLIPPED-CLASSROOM APPROACH AND MULTIMODALITY FOR LEARNING PRODUCTIVE SKILLS ONLINE”. JISOS: JURNAL ILMU SOSIAL 1 (2):77-84. https://mail.bajangjournal.com/index.php/JISOS/article/view/1861.