Saengpun, J., and T. Kheawkham. “A Study on Relation between Beliefs on Mathematical Problem Solving and Ideas on Mathematics Teaching of Pre-service Mathematics Teachers”. Journal of Inclusive and Innovative Education, vol. 6, no. 3, Sept. 2022, pp. 59-71, https://so01.tci-thaijo.org/index.php/cmujedu/article/view/249383.