Yangyuen, Suphan, Songchai Wiriyaumpaiwong, Juckamas Laohavanich, Cherdpong Chiawchanwattana, and Phongkorn Ketmala. 2018. “The Pelleting Sawdust for Using As Litter in Pet Cages: Doi: 10.14456/Mijet.2018.12”. Engineering Access 4 (2). Mahasakham, Thailand:76-82. https://ph02.tci-thaijo.org/index.php/mijet/article/view/10.14456.mijet.2018.12.