Jusrin Efendi Pohan, Mina Syanti Lubis, Yunisa Oktavia, and Noni Febriana. “Formative Assessment In Problem Solving Oriented Language Learning In High School”. Educational Administration: Theory and Practice 29, no. 4 (November 25, 2023): 512–517. Accessed July 22, 2024. https://kuey.net/index.php/kuey/article/view/3457.