(3JaSjQ GdaNQ GdQGRj (B:s (3GdeTJgQ HGdJaSjQ GdcHjQ heaGJjM GdZjH(B/s - (3GdaNQ GdQGRj, eMeO Hf YeQ Hf GdMSfs ((3ecI GdecQeI(B:s (3GdecJHI GdJLGQjI,s, 1990)
(3GdeMJhjGJ (B:s
(3edGMb (B: (3UaMIs
(3HHdjhLQGajI (B: (3UaMIs
Keywords: (3JaGSjQ HGdQCjs -- (3JaGSjQ adSajgs