Ruckbumrung, T., Lalognum, N., Iamboonyarit, P. and Puripanik, C. (2023) “An Evaluation of the Doctor of Philosophy Program in Educational Technology, Revised A.D. 2016”, HRD Journal. Chonburi, Thailand, 13(2), pp. 8–20. available at: https://so01.tci-thaijo.org/index.php/HRDJ/article/view/263074 (accessed: 12 September 2026).