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กลัดล้อม ร, สุขมาตย์ อ, ภู่พัฒน์ ผ. DEVELOPMENT OF 4 MAT ACTIVITIES PACKAGE ON PAST TENSE FOR GRADE 10 STUDENTS AT PROTPITTAYAPAYAT SCHOOL. J. IND. EDUC. [Internet]. 2016 Apr. 29 [cited 2024 Mar. 29];15(1):37-43. Available from: https://ph01.tci-thaijo.org/index.php/JIE/article/view/122254