Jaitak, V and Sharma , K and K, Kalpana and Singh , H P and Singh , Bikram and Kaul , V K (2010) Antioxidant activity of Potentilla fulgens: An alpine plant of western Himalaya☆. journal of food composition and analysis, 23. pp. 142-147.

Kalia, K and Sharma, K and Singh, H P and Singh , Bikram (2008) Effects of Extraction Methods on Phenolic Contents and Antioxidant Activity in Aerial Parts of Potentilla atrosanguinea Lodd. and Quantification of Its Phenolic Constituents by RP-HPLC†. Journal of Agricultural and Food Chemistry, 56 (21). pp. 10129-10134.

Sharma , K and Bari, S S and Singh , H P (2009) Biotransformation of tea catechins into theaflavins with immobilized polyphenol oxidase. Journal of Molecular Catalysis B: Enzymatic, 56 (4). pp. 253-258.

Sharma, U K and Sharma, K and Sharma , N and Sharma, A and Singh, H P and Sinha, Arun K (2008) Microwave-Assisted Efficient Extraction of Different Parts of Hippophae rhamnoides for the Comparative Evaluation of Antioxidant Activity and Quantification of Its Phenolic Constituents by Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC)†. Journal of Agriculture and Food Chemistry, 56. pp. 374-379.