Yousuf, N. I., & Chowdhury, M. H. M. (2018). Operational activities of ground service in Biman Bangladesh Airlines Ltd. BRAC Univeristy.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रYousuf, Nayeem Ibn, और Mr. Hasan Maksud Chowdhury. Operational Activities of Ground Service in Biman Bangladesh Airlines Ltd. BRAC Univeristy, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रYousuf, Nayeem Ibn, और Mr. Hasan Maksud Chowdhury. Operational Activities of Ground Service in Biman Bangladesh Airlines Ltd. BRAC Univeristy, 2018.
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