(3GdeYJOdhf ai GdSjGSI GdeUQjI (B((3OQGSI ai TNUjI GHQGgje GdgdHGhi(B) / s - (3GMeO GdTQHjfi GdSjOs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1991)
Keywords: (3GdYUQ GdMOjKs; (3GdGMhGd GdSjGSjIs; (3GdGMRGH GdSjGSjIs; (3GdSjGSjhf GdeUQjhfs; (3GdQLGd (B- (3JQGLes; (3eUQ (B- (3JGQjN (B- (3GdYUQ GdMOjK (B- (3KhQI (B1919s; (3GHQGgje GdgdHGhis