Hasanali Farida, . (2005). Competitive Intelligence. : Tata Mcgrawhill Pub Co, New Delhi.
Hasanali Farida, . 2005. Competitive Intelligence. : Tata Mcgrawhill Pub Co, New Delhi.
Hasanali Farida, . Competitive Intelligence. : Tata Mcgrawhill Pub Co, New Delhi. 2005.