Pholudom, P., T. Warabamrungkul, and A. Chansongsaeng. “The Relationship Between School Administrators’ Professional Characteristics and Being a Teacher in the 21ST Century in Schools under Chanthaburi Primary Educational Service Area Office 1”. Education journal Faculty of Education, Nakhon Sawan Rajabhat University, vol. 9, no. 2, June 2026, pp. 46-60, doi:10.2774.EDU2026.2.285452.