Sudararat, S. “A STUDY OF NEEDS FOR IMPROVING SCHOOL ADMINISTRATION TOWARDS EXCELLENCE OF PRIVATE SCHOOL ADMINISTRATORS UNDER SAMUT SAKHON PROVINCIAL EDUCATION OFFICE”. Academic Journal Phranakhon Rajabhat University, vol. 14, no. 1, June 2023, pp. 87-99, https://so01.tci-thaijo.org/index.php/AJPU/article/view/262911.