Alaa Raheem Kazim, and Sanaa Burhan Alden, translators. “Optimal Conditions of Phospholipid Produced from Bacillus Subtilis”. World Journal of Experimental Biosciences, vol. 2, no. 2, Nov. 2014, pp. 46-53, https://journals.uniscipub.com/Wjebs/article/view/34.