Gupta,U.C. (2009). Vyavaharik patrakarita. Arjun Publishing House.
Chicago Style aipamenaGupta,U.C. Vyavaharik Patrakarita. New Delhi: Arjun Publishing House, 2009.
MLA aipamenaGupta,U.C. Vyavaharik Patrakarita. Arjun Publishing House, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.