Tangjitnusorn K. EFFECTS OF BLENDED LEARNING INSTRUCTION USING FLIPPED CLASSROOM MODEL ON ENGLISH ORAL ACADEMIC PRESENTATION ABILITY OF UNDERGRADUATE STUDENTS IN WORK INTEGRATED LEARNING PROGRAM. JEI [internet]. 2023 Jan. 31 [cited 2026 Aug. 28];25(1):12-2. available from: https://so06.tci-thaijo.org/index.php/edujournal_nu/article/view/248499