Srikoon, Sanit, Tassanee Bunterm, Teerachai Nethanomsak, and Keow Ngang Tang. 2018. “Effect of 5P Model on Academic Achievement, Creative Thinking, and Research Characteristics”. Kasetsart Journal of Social Sciences 39 (3):488-95. https://so04.tci-thaijo.org/index.php/kjss/article/view/242573.