Izzaroh, Iftitakhul, Sunyoto Prajitno, Susilo Hadi, and Lydia Prayitno. 2025. “Implications of Problem Based Learning Model on Students’ Critical Thinking Ability in Arithmetic Sequence”. Journal of Education and Learning Mathematics Research (JELMaR) 6 (1), 55-59. https://doi.org/10.37303/jelmar.v6i1.3827.