Muthi’ik, I. I., Abdurrahman, A., & Rosidin, U. (2018). The Effectiveness of Applying STEM Approach to Self-Efficacy and Student Learning Outcomes for Teaching Newton’s Law. Jurnal Penelitian & Pengembangan Pendidikan Fisika, 4(1), 11–18. https://doi.org/10.21009/1.04102