(3GdehShYI aj Ydhe GdWHjYjI (B:s (3GdeLdO GdKGdK ef GdTjf Edi GdbGa (B/s - (3ZGdH, COhGQs ((3GdLRGFQ (B:s (3OjhGf GdeWHhYGJ GdLGeYjI ,s, 1990)
Keywords: (3Ydhe GdWHjYjIs; (3GdehShYI s