Matul Putri N, Syamsurizal S. The Effect of the Problem-Based Learning Model on the Numeracy Skills of Phase E Students Regarding Biogeochemical Cycles. INSEJ [Internet]. 2026 Jan. 31 [cited 2026 Jul. 25];5(1):402-9. Available from: https://jurnal.iainambon.ac.id/index.php/JTI/article/view/15577