(3bhGYO GdTHcI GdYQHjI ddeYdheGJ dJQJjH GdeOGNd aj GdagGQS h GdHHdjhZQGajGJ h GdCOdI (B/ s - (3GJje, eMehO CMeOs ((3JhfS (B:s (3LGeYI GdOhd GdYQHjI,s, 1989)
Keywords: (3GdagQSIs; (3GdagQSI GdhUajIs