Putri, F.A.E., Syaiful, S. and Siburian, J. 2021. Student’s Critical Thinking Skill on Online Inquiry Learning and Problem Based Learning (PBL). Edumatica : Jurnal Pendidikan Matematika. 11, 01 (Apr. 2021), 84-92. DOI:https://doi.org/10.22437/edumatica.v11i01.11458.