(3ef bVGjG GdJfejI aj GdeLJeY GdYQHj (B/s - (3UGHQ, eMjj GdOjfs ((3UjOG, dHfGf ;s (3HjQhJ (B:s (3GdecJHI GdYUQjI,s, 1987)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdeLJeY GdYQHjs; (3GdJfejI GdGLJeGYjIs; (3GdHdGO GdYQHjIs -- (3SjGSI GLJeGYjIs