Akib, W., & Islam, M. T. (2014). Effectiveness of sales channel, Airtel Bangladesh Limited. BRAC University.
Lua i Stíl Chicago (17ú heag.)Akib, Wasif, agus Md. Tamzidul Islam. Effectiveness of Sales Channel, Airtel Bangladesh Limited. BRAC University, 2014.
Lua MLA (8ú heag.)Akib, Wasif, agus Md. Tamzidul Islam. Effectiveness of Sales Channel, Airtel Bangladesh Limited. BRAC University, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.