Hodgson, China, Maliwan Yotharak, and Wanchat Thippamas. 2021. “FACTORS OF MANAGEMENT AFFECTING ENGLISH ACHIEVEMENT IN THE SMALL-SIZED-SCHOOLS OF THE SECONDARY EDUCATIONAL SERVICE AREA OFFICE 12”. Journal of Graduate MCU KhonKaen Campus 8 (2):165-77. https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/247097.