Kanwal Raj, Namita Misra, Geetali Pachauri, Mithelesh Sharma, Akhilesh Kumar Tamrakar, Amar Bahadur Singh, Arvind Kumar Srivastava, K. Phani Kiran, C.V. Narasimha Rao and S. R. Prubhu
Natural Product Research Part A 23 ( 1 ): 60 - 69 , 2009