Prathap B, Rajendran S.S., Dinakar A., Srinivasa Rao G., Ashok Kumar J., and Roosewelt C. “Simultaneous Determination of Gatifloxacin and Ambroxol Hydrochloride from Tablet Dosage Form Using RP-HPLC”. International Journal of Research in Pharmaceutical Sciences, vol. 1, no. 3, Sept. 2010, pp. 325-7, https://ijrps.com/home/article/view/2933.