Kongon S. A Proposed System of Performance Management Standards of Primary Education Service Area Office: A Proposed System of Performance Management Standards of Primary Education Service Area Office. GJL [Internet]. 2018 Jun. 30 [cited 2024 May 5];7(1):308-23. Available from: https://so01.tci-thaijo.org/index.php/gjournal-ksu/article/view/132135