P. Mane, A. D. Mali, A. Tamboli, R. Bathe, and M. Patil, “Estimation of Levocetirizine in Bulk and Formulation by First Order Derivative Area under Curve UV-Spectrophotometric Methods”., Int J of Adv in Sci Res, vol. 2, no. 1, pp. 09–15, Jan. 2016, doi: 10.7439/ijasr.v2i1.2888.