Srisuk, Araya, and Teerawat Montaisong. 2021. “ORGANIZATIONAL CULTURE AFFECTING THE STRATEGIC PLANNING OF SMALL - SIZED SCHOOLS UNDER PHRANAKHON SI AYUTTHAYA EDUCATIONAL SERVICE AREA 1 AND 2”. Journal of MCU Nakhondhat 8 (2). Nakhon Si Thammarat, Thailand:311-24. https://so03.tci-thaijo.org/index.php/JMND/article/view/250510.