Bhasker Bharat. (2015). Electronic Commerce (4th.). McGraw Hill.
Chicago Style aipamenaBhasker Bharat. Electronic Commerce. 4th. New Delhi: McGraw Hill, 2015.
MLA aipamenaBhasker Bharat. Electronic Commerce. 4th. McGraw Hill, 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.