Kale, N. (2002). Business environment and development -S.Y.B.Com (5th.). Vipul.
Chicago Style aipamenaKale, N. Business Environment and Development -S.Y.B.Com. 5th. MUmbai: Vipul, 2002.
MLA aipamenaKale, N. Business Environment and Development -S.Y.B.Com. 5th. Vipul, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.