แดงสีภ. “THE SCENARIO OF JUNIOR SECONDARY EDUCATION IN THE NEXT DECADE (A.D. 2019-2028)”. Journal of MCU Nakhondhat, Vol. 6, no. 10, Jan. 2020, pp. 6034-53, https://so03.tci-thaijo.org/index.php/JMND/article/view/225290.