(1)
Venkata Kumar Ch; Nagamalleswara Rao K; Madhuri K; Anil Kumar Ch; Kesava Rao T KV. A Quantitative Determination of Penbutolol and Its Metabolite in Plasma by Liquid Chromatography Tandem Mass and Its Application to Pharmacokinetic Studies. World J Pharm Sci 2014, 2, 149-160.