Agung Sarmatheo, C., Syam, M., & Zulkarnaen. (2020). Efektivitas Model Problem Based Learning (PBL) terhadap Problem Solving Skill dan Penguasaan Konsep Kalor . Jurnal Literasi Pendidikan Fisika, 1(02), 165 - 173. https://doi.org/10.30872/jlpf.v1i2.190