Yangyuen, Suphan, and Juckamas Laohavanich. “Development of a semi-automatic macadamia cracking machine”. Engineering and Applied Science Research 45, no. 4 (December 19, 2018): 256–261. accessed September 21, 2026. https://ph01.tci-thaijo.org/index.php/easr/article/view/99881.