Li K, Mahakhan P, Pongpeng P. Development of Management Guidelines to Promote Rugby Clubs in Secondary Schools at Shandong Province, the People’s Republic of China. IARJ [internet]. 2026 Sep. 20 [cited 2026 Sep. 28];6(5):e296255. available from: https://so03.tci-thaijo.org/index.php/IARJ/article/view/296255