Rattanathaworn D, Chaowatthanakun K, Chandechasuk N. The Development of Learning Achievement and Mathematics Problem Solving Skill by Flipped Classroom and Star Strategy of Seventh Grade Students Kannasootsuksalai School Suphanburi. J.Humanities Social Sciences [internet]. 2022 Feb. 21 [cited 2026 Sep. 11];5(1):163-77. available from: https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/256558