Werasit Kanlayakrit, Preeyanuch Bovornreungroj, Takuji Oka, and Masatoshi Goto. 2004. “Production and Characterization of Protease from an Extremely Halophilic Halobacterium sp. PB407”. Agriculture and Natural Resources 38 (5). Bangkok, Thailand:15-20. https://li01.tci-thaijo.org/index.php/anres/article/view/243207.