เรือนนะการ ประเสริฐ. “The Guidelines for Using Statistical Methods in Research for Doctoral Students at the Higher Education Institutes in the Northeast Region”. Parichart Journal 30, no. 2 (December 7, 2017): 75–104. accessed September 28, 2026. https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/105041.