(3JGQjN GhQhHG hGdYGde ai GdYUQ GdMOjK (B: s (3ef XghQ GdHhQLhGRjI GdGhQhHjI Gdi GdMQH GdHGQOI (B/ s - (3YHOGdYXje QeVGfs ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1997)
(3GdLRA GdKGfi (B: (3ef JShjI eDJeQ ajfG (B1815 (3Gdi JShjI eDJeQ aQSGi (B1919s
(3GdLRA GdKGdK (B: (3ef bjGe GdfGRjI ai GdefjG Gdi GdMQH GdHGQOIs
Keywords: (3GdJGQjNs; (3GdfHdGAs; (3GdGUdGM GdOjfis; (3GdKhQI GdaQfSjIs; (3GhQHG (B- (3JGQjN (B- (3YUQ GdfgVIs; (3GhQHG (B- (3JGQjN (B- (3GdYUQ GdMOjKs