โพธิ์วงษ์ ส. (2020) “Machine crystallized fruit of Discrete power system”., Vocational Education Central Region Journal, 4(2), pp. 6–12. Available at: https://so06.tci-thaijo.org/index.php/IVECJournal/article/view/246231 (Accessed: 29 March 2024).