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. Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam, v. 12, n. 1, p. 27–32, 30 Jan.2023.