Rai, U. (2005). Business communication - F.Y.B.Com. Himalaya Publishing House.
Chicago Style aipamenaRai, Urmila. Business Communication - F.Y.B.Com. Mumbai: Himalaya Publishing House, 2005.
MLA aipamenaRai, Urmila. Business Communication - F.Y.B.Com. Himalaya Publishing House, 2005.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.