Manah, N., Isnarto, I. and Wijayanti, K. 2017. Analysis of Mathematical Problem Solving Ability Based on Student Learning Stages Polya on Selective Problem Solving Model. Unnes Journal of Mathematics Education. 6, 1 (Mar. 2017), 19 - 26. DOI:https://doi.org/10.15294/ujme.v6i1.10855.