Sekaran Uma. (2010). Research Methods for Business (4th.). Wiley India.
Chicago Style aipamenaSekaran Uma. Research Methods for Business. 4th. New Delhi: Wiley India, 2010.
MLA aipamenaSekaran Uma. Research Methods for Business. 4th. Wiley India, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.