(3JYdjb Ydi Mce GdOGFQI GdeOfjI deMceI GdfbV (B/s - (3eMehO LeGd GdOjf Rcjs; (3LGeYI GdbGgQIs (3cdjI GdMbhbs ((3GdbGgQI(B:s (3cdjI GdMbhb(B-(3LGeYI GdbGgQI,s, 1990)
1
Keywords: (3GdbGfhf GdOhdjs; (3GdNWC aj JWHjb GdbGfhfs; (3GdMces; (3GdbUhQ aj JaSjQ GdbGfhfs; (3GdMce GdGSJFfGajs