พนาสนธิ์ พรหมพิริยะ, and เจริญชันษา กรปภา. 2019. “The Relation Between Leadership States and Ethics of School Administrators for Teachers’ Perception at School in Mueng District, under The Cha-Choeng-Sao Primary Educational Administration Service Area Office 1”. Journal of MCU Humanities Review 5 (1). ิิิBankok, Thailand:233-46. https://so03.tci-thaijo.org/index.php/human/article/view/187037.