(2011). UGC NET/SLET-Economics. Danika Publishing Company.
Chicago Style aipamenaUGC NET/SLET-Economics. New Delhi: Danika Publishing Company, 2011.
MLA aipamenaUGC NET/SLET-Economics. Danika Publishing Company, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.