Al Mamun, M. A., & Languages, B. I. o. (2014). Effectiveness of audio-visual aids in language teaching in tertiary level. BRAC University.
Lua i Stíl Chicago (17ú heag.)Al Mamun, Md. Abdullah, agus BRAC Institutes of Languages. Effectiveness of Audio-visual Aids in Language Teaching in Tertiary Level. BRAC University, 2014.
Lua MLA (8ú heag.)Al Mamun, Md. Abdullah, agus BRAC Institutes of Languages. Effectiveness of Audio-visual Aids in Language Teaching in Tertiary Level. BRAC University, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.