(3eLehYI bhGfjf GdGLQGAGJ GdLfGFjI(B. s (3GdLRA GdGhd, s (3GdGUhd GdYGeI (B/ s - (3eMehO, VGQj Ndjd, s ((3HZOGO, (B[(3GdYQGb(B] : s (3LGeYI GdOhd GdYQHjI, eLdS hRGQGA GdOGNdjI GdYQH, GdecJH GdYQHj decGaMI GdLQjeI, HZOGO (B984.s, 1984)
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3bGfhf GdGLQGAGJ GdLfGFjIs -- (3GdHdGO GdYQHjI(B.s; (3GdbGfhf GdLfGFjs -- (3GdHdGO GdYQHjI(B.s