(3GdEKHGJ aj GdehGO GdLfGFjI aj GdbGfhf GdebGQf(B.s (3GdLRA GdKGfj,s (3GdJaJjT hGdVHW (B/s - (3eUWai, eMehO eMehOs ((3GdbGgQI (B:s (3eWHYI LGeYI GdbGgQI,s, 1978)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3bGfhf GdELQGAGJ GdLfGFjIs -- (3eUQs; (3GdEKHGJ (B((3bGfhf(B)s -- (3eUQs; (3GdbGfhf GdLfGFjs -- (3eUQs