Z, Rahmi Putri, Jumadi Jumadi, Ariswan Ariswan, Ratnasari Ratnasari, and Depi Oktasari. 2019. “The Effectiveness of Teachers’ Use of Lecture Model Combined With Cooperative Learning Method for Enhancing Students’ Problem-Solving Skills in Physics”. Jurnal Penelitian & Pengembangan Pendidikan Fisika 5 (2), 83 - 90. https://doi.org/10.21009/1.05203.