Thao, Nguyen, Do Thuy Linh, Dinh Thi Ngoc Mai, Pham The Hai, & Nguyen Hong Minh. " Solid Fermentation of Bacillus thuringiensis: Method Development." VNU Journal of Science: Natural Sciences and Technology [Online], 37.4 (2021): n. pag. Web. 29 Mar. 2024