1.
Chantarung S, Somprach K. Need Assessment and Guidelines for English Communicative Proficiency of School Principals in Schools under The Nakhon Ratchasima Primary Education Service Area Office 6 . JILS [internet]. 2018 Sep. 28 [cited 2026 Sep. 13];12(3):43-5. available from: https://so02.tci-thaijo.org/index.php/EDGKKUJ/article/view/241796