Maulyda, M.A. et al. 2019. Problem-solving ability of primary school teachers based on Polya’s method in Mataram City. PYTHAGORAS Jurnal Matematika dan Pendidikan Matematika. 14, 2 (Dec. 2019), 139–149. DOI:https://doi.org/10.21831/pg.v14i2.28686.