Sultana, S. N., & Akhter, M. (2015). Backwash effect of SSC and HSC Examinations: Focus on listening and speaking skills. BRAC University.
Lua i Stíl Chicago (17ú heag.)Sultana, Sayeda Niger, agus Mahmuda Akhter. Backwash Effect of SSC and HSC Examinations: Focus on Listening and Speaking Skills. BRAC University, 2015.
Lua MLA (8ú heag.)Sultana, Sayeda Niger, agus Mahmuda Akhter. Backwash Effect of SSC and HSC Examinations: Focus on Listening and Speaking Skills. BRAC University, 2015.
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