Das, P., Das, S., Sahoo, D., Dale, J., Rao, V., Nayak, S., & Palo, S. (2014). Comparative Evaluation of Purification Methods for Production of Polypeptide Antibiotics – Polymyxin B and Cerexin A from Bacillus Species. PharmaTutor, 2(8), 188-200. Retrieved from http://www.pharmatutorjournal.com/index.php/pt/article/view/166