Sarki Baki, Aliyu, Abdulrahman Bello, Ummul Kalthum Mohammad, Ahmad Aliyu Farouq, Muhammad Aliyu Yahaya, Auwal Gambo, Umar Salisu Ahmad, and Shehu Zaid. 2016. “Isolation and Characterization of Yeast from Traditionally Fermented Cow Milk and Their Application in the Production of Biosurfactant”. Scientific Journal of Microbiology 5 (11):134-41. http://sjournals.com/index.php/sjm/article/view/344.