กฤตาคม ฑ, พันธ์งาม อ. A Development of the Critical Thinking Skills by the Evaluation Technique in Mathematics for Mattayom Suksa Four Level of Wangyai Pittayasan School under the Secondary Educational Service Area Office 22. ubonreseva [internet]. 2021 Aug. 27 [cited 2026 Sep. 29];3(2):11-20. available from: https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/250938