(3GdJfSjb GdEbdjej ddehGbY aj GdhdGjGJ GdeJMOI (B/s - (3SJjaf GS(B. (3HjQOSGds; (3Lhf OHdjh(B.(3adhQfs ((3GdCQOf (B:s (3eQcR GdcJH GdCQOfj ,s, 1987)
Keywords: (3GdehGbY s; (3GdhdGjGJ GdeJMOI s; (3cfOGs; (3GdJfSjb GdGbdjej s