Thongsri P, Bulpakdi B, Sudrung J. Administrators’ Supervisory Skills that Influence the World Class Standard Outcomes of Secondary Schools. OJED [Internet]. 2023 Dec. 31 [cited 2024 May 15];18(2):OJED-18. Available from: https://so01.tci-thaijo.org/index.php/OJED/article/view/266962