Sari, N., Saragih, S., Napitupulu, E., Rakiyah, S., Sari, D. N., Sirait, S., & Anim‎. (2024). Hypothetical Learning Trajectory Through the Problem-Based Learning in Junior High School Students. KnE Social Sciences, 9(13), 1122–1133. https://doi.org/10.18502/kss.v9i13.16037