R. S. Indriyana and S. Susilowati, “The Effects of Model Project-Based Learning Approach on STEM (Science, Technology, Engineering, Mathematic) on Natural Science Learning to Junior High School Student’s Critical Thinking Skills And Cooperative Skills at SMP N 1 Berbah”, J. Sc. Edu. Research, vol. 4, no. 2, pp. 70–75, Nov. 2020.