Venkatesh, V., A. Elphine Prabahar, P. Venkata Suresh, Ch. Uma Maheswari, and N. Rama Rao. 2010. “RP-HPLC Method for Simultaneous Estimation of Azithromycin and Ambroxol Hydrochloride in Tablets”. Asian Journal of Chemistry 23 (1):312-14. https://asianpubs.org/index.php/ajchem/article/view/10133.