Ashok, P., David, B.(1990).Teknigues of economic analiysis with application / Ashok Parikh, David Bailey .London:Harvester Wheatsheaf.
Gaya MLA
Parikh, Ashok., Bailey, David."Teknigues of economic analiysis with application / Ashok Parikh, David Bailey".London:Harvester Wheatsheaf,1990.Textbook.