E. . Halimatussa’diyah, A. . Hartono, A. Luftiah Tantri, and L. Linawati, “Penerapan Problem Based Learning Untuk Meningkatkan Kemampuan Berpikir Kritis Peserta Didik Di Pesantren Darul Qur’an: Application of Problem Based Learning to Improve Students’ Critical Thinking Ability at Darul Qur’an Islamic Boarding School”, jmpmipa, vol. 12, no. 1, pp. 27-32, Jan. 2023.