Sutee Wangtueai, Wanchai Worawattanamateekul, Mathana Sangjindavong, Nuanphan Naranong, and Sarote Sirisansaneeyakul. 2006. “Isolation and Screening of Chitosanase Producing Microorganisms”. Agriculture and Natural Resources 40 (4). Bangkok, Thailand:944-48. https://li01.tci-thaijo.org/index.php/anres/article/view/243837.