Nirmala LR, Maulina D, Riswandi, Yulianti D. The development of teaching materials based on the pq4r strategy to improve high order thinking skill of students. tijossw [Internet]. 2022 Jun. 30 [cited 2026 Nov. 3];4(1):375-81. Available from: https://www.growingscholar.org/journal/index.php/TIJOSSW/article/view/241