Rithinyo, Manote, Kampanat Taysongnoen, Amornsak MayaI, Anuchit Khongrit, Phongsak Runkratok, and Jittiwat Nithikarnjanatharn. 2017. “Effect of Sub-Zero Treatments and Heat Treatment under Pressure of Quenching Media on Wear of Blanking Die”. Thai Industrial Engineering Network Journal 3 (2):7-14. https://ph02.tci-thaijo.org/index.php/ienj/article/view/178856.