Al Mamun, M. A., & Languages, B. I. o. (2014). Effectiveness of audio-visual aids in language teaching in tertiary level. BRAC University.
Čikaški stil citiranja (17. izdanje)Al Mamun, Md. Abdullah, i BRAC Institutes of Languages. Effectiveness of Audio-visual Aids in Language Teaching in Tertiary Level. BRAC University, 2014.
MLA način citiranja (8. izdanje)Al Mamun, Md. Abdullah, i BRAC Institutes of Languages. Effectiveness of Audio-visual Aids in Language Teaching in Tertiary Level. BRAC University, 2014.
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