(3fXQjGJ Gdajde GdcHQi (B/ s - (3GfOQh(B, (3OGOdi(B.(3Ls; (3LQLS aDGO GdQTjOis ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1987)
Keywords: (3GdGadGe GdSjfeGFjIs; (3GdGadGes; (3JGQjN hfbOs