Kharat, R., S. Jadhav, S. Pawar, and A. Tamboli. “Difference Spectroscopic Method for the Estimation of Ciprofloxacin Hydrochloride in Bulk and in Its Formulation”. PharmaTutor, Vol. 3, no. 7, July 2015, pp. 51-55, http://www.pharmatutorjournal.com/index.php/pt/article/view/295.