(3ePGgH GdGOH (B: s (3eYGde h GfYcGSGJ (B/ s - (3GdGjhHi (B: (3jGSjfs ((3HjQhJ (B: s (3GdeDSSI GdLGeYjI ddOQGSGJ h GdfTQ h GdJhRjY (B: s, 1982)
(3eL(B2 (3GdQeRjIs
(3jTJed Ydi GQLGYGJ HHdjhLQGajIs
(3GdecJHI JbJfi abW eL(B2s
Keywords: (3GdGOH GdYQHis -- (3GdJGKjQ GdGhQHis; (3GdGOH GdYQHis -- (3JGQjN h fbOs -- (3GdYUQ GdMOjKs; (3GdGOH GdebGQfs -- (3GdGhQhHi h GdYQHis; (3GdGOH GdebGQfs -- (3GdYQHi h GdGhQhHis