Trakulkasemsuk P, Phanomsarnnarin N, Yodsai T, Wongsakul S. A CAUSAL RELATIONSHIP MODEL OF ONLINE LEARNING ON SECONDARY SCHOOL STUDENTS’ LOW BACK PAIN. MCU SSR [Internet]. 2021 Sep. 18 [cited 2024 May 2];10(3):26-38. Available from: https://so03.tci-thaijo.org/index.php/jssr/article/view/251377