Chowwanonthapunya, Thee, and Chaiyavat Peeratatsuwan. 2016. “The Study on High Temperature Degradation of AISI 1020 Low Carbon Steel in the Carburization State”. RMUTP Research Journal Sciences and Technology 10 (2). Bangkok, Thailand:22-29. https://doi.org/10.14456/jrmutp.2016.18.