Jahan, A., & Popy, K. (2013). Direct sales approach of business solution product in business market: An analysis on Grameenphone. BRAC University.
Lua i Stíl Chicago (17ú heag.)Jahan, Anbesat, agus Kulsum Popy. Direct Sales Approach of Business Solution Product in Business Market: An Analysis on Grameenphone. BRAC University, 2013.
Lua MLA (8ú heag.)Jahan, Anbesat, agus Kulsum Popy. Direct Sales Approach of Business Solution Product in Business Market: An Analysis on Grameenphone. BRAC University, 2013.
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