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ทองวิเศษพ, เลิศอมรพงษ์ช, จันทราช. THE EFFECTS OF ORGANIZING MATHEMATICS LEARNING ACTIVITIES USING ACTIVE LEARNING ON MATHEMATICS LEARNING ACHIEVEMENT AND MATHEMATICAL CONCEPT IN INEQUALITY OF NINTH GRADE STUDENTS. Journal of Industrial Education [Internet]. 25Aug.2019 [cited 30Jan.2020];18(2):197-06. Available from: https://www.tci-thaijo.org/index.php/JIE/article/view/191682