Changjun, K. and Khayankij, S. (2022) “State and Problems of Distance Learning Instructional Management in the Covid-19 Situation of Preschool Teachersin School under Lopburi Primary Educations Service Area Office 1”, An Online Journal of Education, 17(2), p. OJED1702021 (15 pages). Available at: https://so01.tci-thaijo.org/index.php/OJED/article/view/260506 (Accessed: 9 May 2024).