“Study of Optimum Conditions for Polyhydroxybutyrate Production from Local Isolate of Bacillus Cereus”. University of Thi-Qar Journal of Science 5, no. 2 (May 28, 2015): 88–96. Accessed November 21, 2024. https://jsci.utq.edu.iq/index.php/main/article/view/109.