Yu , Y., Saleewong, D. and Klangphahol, K. . (2024) “Effect of Problem-based Learning on Mathematical Problem-solving Ability of Sixth-Grade Students in Leshan Primary School”, International Journal of Sociologies and Anthropologies Science Reviews. Maha Sara Kham, TH, 4(3), pp. 583–594. doi: 10.60027/ijsasr.2024.4545.