(3eY GdehSjbi (B: (3PcQjGJ hOQGSGJ (B((3gOjI ef GdGOjH YHOGdaJGM GdLed(B) / s - (3aDGO RcQjGs ([S.N] : (3ecJHI eUQ , s, 1991)
Keywords: (3GdMVGQI GdYQHjI GdGSdGejI (B- (3GdeYGQa GdHMQjIs; (3GdadSaIs; (3GdadSaI GdMOjKIs; (3GdehSjbis