Tri Utami, Y., ., S. and Irvan, M. (trans.) (2018) “Analyzing Students’ Critical Thinking Ability on Solving Sequences and Series Problems through Problem-Based Learning with Islamic Nuance”, International Journal of Scientific Research and Management (IJSRM), 6(01), pp. M–2018. doi:10.18535/ijsrm/v6i1.m01.