P. S. Mehta, P. R. Patel, R. R. Parmar, M. M. K. Modasiya, and D. A. Shah, “Development and Validation of Derivative Spectroscopic Method for Simultaneous Estimation of Cefadroxil and Probenecid”, Scopus Indexed, vol. 7, no. 1, pp. 2350–2355, Feb. 2014.