Al Mamun, M. A., & Languages, B. I. o. (2014). Effectiveness of audio-visual aids in language teaching in tertiary level. BRAC University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAl Mamun, Md. Abdullah, और BRAC Institutes of Languages. Effectiveness of Audio-visual Aids in Language Teaching in Tertiary Level. BRAC University, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAl Mamun, Md. Abdullah, और BRAC Institutes of Languages. Effectiveness of Audio-visual Aids in Language Teaching in Tertiary Level. BRAC University, 2014.
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