Lertsiri, Warusa, and Chulalak Sorapan. 2022. “Time Management of School Administrators Working in Schools Under the Pathum Thani Primary Educational Service Area Office 2”. Integrated Social Science Journal, Mahidol University 9 (1):32-55. https://so02.tci-thaijo.org/index.php/isshmu/article/view/256600.