Apsari, N. L. S., & Wiarta, I. W. (2020). Pengaruh Model Pembelajaran Project Based Learning melalui Percobaan Sederhana Terhadap Kompetensi Pengetahuan IPA. International Journal of Elementary Education, 4(1), 54–63. https://doi.org/10.23887/ijee.v4i1.24333