Kaewkerd, Nattawut, Nuttakan Pakprot, and Apichat Lenanant. “FACTORS AFFECTING THE OPERATIONAL QUALITY IN DIGITAL ERA OF TEACHERS IN SECONDARY SCHOOLS IN PHETCHABURI PROVINCE”. Journal of MCU Phetchaburi Review 6, no. 1 (September 12, 2023): หน้า 362 – 379. accessed October 10, 2026. https://so03.tci-thaijo.org/index.php/JPR/article/view/268027.