Pholudom, P., Warabamrungkul, T., & Chansongsaeng , A. (2026). 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, 9(2), 46–60. https://doi.org/10.2774.EDU2026.2.285452