Yarmi, Gusti, Yustia Suntari, Herlina Usman, and Yesi Yesi. “Need Analysis of Mobile Learning Based on Problem Based Learning for Elementary School Student”. JTP - Jurnal Teknologi Pendidikan 26, no. 2 (August 31, 2024): 507-516. Accessed April 20, 2025. http://103.8.12.212:33180/unj/index.php/jtp/article/view/47170.