(3efGRYGJ GdMjGRI heTcdGJgG GdYedjI GdgGeI (B:s (3aj VhA GdJYOjdGJ GdJTQjYjI GdGNjQI h GdeGOI (B373 (3ecQQG YbhHGJ (B/s - (3eMeO TJG GHh SYOs ((3GdbGgQI (B:s (3eWGHY QhR GdjhSa,s, 1984)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbGfhf GdLfGFjs; (3GdMeGjI GdLfGFjI ddMjGRIs