Thungthong, Pairin, and Kanchana Boonsong. 2025. “Factors Affecting Learning Loss of Students in the Situation of Covid -19 of Schools under Phetchaburi Primary Educational Service Area Office 2”. Journal for Developing the Social and Community 12 (3). Bangkok, Thailand:71-92. https://so03.tci-thaijo.org/index.php/rdirmu/article/view/292232.