1.
Thawsopa S, Charoenkul N. The Priority Needs of the Primary Schools Management based on Lean Six-sigma Method. rpujournal [Internet]. 2020 Dec. 25 [cited 2024 May 5];6(3):149-61. Available from: https://so03.tci-thaijo.org/index.php/rpu/article/view/248929