Nale, M. et al. 2023. Peningkatan Kemampuan Berpikir Kritis Peserta Didik melalui Penerapan Model Problem Based Learning pada Pembelajaran IPA Kelas VIII. Journal of Education Research. 4, 4 (Dec. 2023), 2072–2080. DOI:https://doi.org/10.37985/jer.v4i4.543.