Imtiaz, N. (2015). Activities related to value added services of Grameenphone limited. BRAC University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रImtiaz, Nafis. Activities Related to Value Added Services of Grameenphone Limited. BRAC University, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रImtiaz, Nafis. Activities Related to Value Added Services of Grameenphone Limited. BRAC University, 2015.
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