Sorrahong R, Jongkatkorn C. THE ADMINISTRATIVE EXCELLENCE MODEL OF BEACH VOLLEYBALL OF DANCHANGWITTAYA SCHOOL UNDER THE SECONDARY EDUCATION AREA OFFICE 9. JSC [internet]. 2023 Nov. 30 [cited 2026 Jan. 8];7(11):112-23. available from: https://so06.tci-thaijo.org/index.php/JSC/article/view/268933