1.
Zulfaidhah Z, Palenewen E, Hardoko A. Needs Analysis in the Problem Based Learning (PBL) Model Tools and Problems Regarding 7th Grade Students’ Science Learning Outcome at SMPN 2 Bongan. Biodik [Internet]. 2018 Jun. 1 [cited 2026 Apr. 20];4(1):48-59. Available from: https://www.online-journal.unja.ac.id/biodik/article/view/5508