Sudha, T, K Manthena, VR Ravikumar, and V Ganesan. 2015. “High Performance Liquid Chromatographic Method for the Determination of Ambroxol Hydrochloride in Presence of Antimicrobial Preservatives in Oral Liquid Formulation”. Bangladesh Pharmaceutical Journal 18 (1):8-14. https://doi.org/10.3329/bpj.v18i1.23505.