(3GdSjGSI GdeGFjI ddcjGf GdUgjhfi (B:s (3OQGSI ai GdLZQGajI GdSjGSjI (B/s - (3Gdehefi, eMeO CMeO YbdI(B.s ((3YeGf (B:s (3OGQ YeGQ ddfTQ hGdJhRjY,s, 1986)
(3jMJhi Ydi bGFeI HHdjhLQGajI HGdeQGLY(B.s
1
Keywords: (3EeOGOGJ GdejGgs -- (3GdLhGfH GdSjGSjIs -- (3GdYGde GdYQHis; (3eUGOQ GdejGgs -- (3ESQGFjds; (3eUGOQ GdejGgs -- (3adSWjfs