Firdaus, Faizah, Wachju Subchan, and Erlia Narulita. 2020. “Developing STEM-Based TGT Learning Model to Improve students’ Process Skills”. JPBI (Jurnal Pendidikan Biologi Indonesia) 6 (3):413-22. https://doi.org/10.22219/jpbi.v6i3.12249.