วงศ์สุวรรณ จ., and อุสาโห ช. “ลพบุรี Guidelines for Educational Opportunity Extension School Management Toward Excellence Under. ”. An Online Journal of Education, vol. 11, no. 4, Apr. 2017, pp. 197-10, https://so01.tci-thaijo.org/index.php/OJED/article/view/84636.