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.
Cita Chicago (17th ed.)Tusar, Md. Fazlul Karim, i 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.
Cita MLA (8th ed.)Tusar, Md. Fazlul Karim, i 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.
Atenció: Aquestes cites poden no estar 100% correctes.