Sonia Tomar, and T. Singhal. “Preformulation Studies of Niosomal Gel of Prednisolone & Azithromycin for Topical Drug Delivery System”. Journal of Innovations in Pharmaceutical and Biological Sciences, vol. 2, no. 3, July 2015, pp. 312-21, https://jipbs.com/index.php/journal/article/view/72.