1.
surinya T. The study on the Relationship Between Intelligence Quotient Obtained from the Coloured Progressive Matrices and Piaget’s Theory on the stages of Cognitive Development of Thai Children, Age 5-11 Years. kasetsart J. Soc. Sci. [internet]. 1985 Jul. 1 [cited 2026 Sep. 12];6(2):135-9. available from: https://so04.tci-thaijo.org/index.php/kjss/article/view/243558