Siriruttanaseesakun P, Surat M. A Construction of Summary Writing Efficiency Test of Thai subject for Senior high School Student under The Nong Khai Secondary Education Service Area Office: A Construction of Summary Writing Efficiency Test of Thai subject for Senior high School Student under The Nong Khai Secondary Education Service Area Office. rtnb [internet]. 2023 Aug. 31 [cited 2025 Apr. 7];5(2):112-24. available from: https://so07.tci-thaijo.org/index.php/rtnb/article/view/2806