(3agQSJ GdeNWhWGJ GdYQHjI aj GdWH h GdUjOdI GdeMahXI aj NRGfI (B... / s - (3WYeg, YOfGf LhGOs ((3GdchjJ (B:s (3eQcR GdeNWhWGJ h GdJQGK h GdhKGFb,s, 1990)
Keywords: (3GdHHdjhZQGajGJs; (3GdeNWhWGJs; (3Yde GdUjOdIs; (3GdWHs