Rizal, Zacky Al-Ghofir El-Muhtadi, and Ahmad Syahir. “PAI Students’ Perception of Problem-Based Learning at K.H. Abdurrahaman Wahid State Islamic University”. Proceeding International Conference on Education, Oct. 2025, pp. 63-71, https://jurnalfaktarbiyah.iainkediri.ac.id/index.php/proceedings/article/view/6709.