Tusar, M. F. K., & Khan, M. (2011). Google's keyword analysis tool and compare its various metrics for finding the most popular search terms on the web. BRAC University.
Lua i Stíl Chicago (17ú heag.)Tusar, Md. Fazlul Karim, agus Mumit Khan. Google's Keyword Analysis Tool and Compare Its Various Metrics for Finding the Most Popular Search Terms on the Web. BRAC University, 2011.
Lua MLA (8ú heag.)Tusar, Md. Fazlul Karim, agus Mumit Khan. Google's Keyword Analysis Tool and Compare Its Various Metrics for Finding the Most Popular Search Terms on the Web. BRAC University, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.