(3GdSHHjI ai GdbGfhf GdLfGFi (B:s (3OQGSI JMdjdjI ebGQfI (B/s - (3QAha YHjOs ((3GdbGgQI (B:s (3OGQ GdacQGdYQHj ,s, 1974)
(3jTJed Ydj GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3YdGbI GdSHHjIs; (3GdbGfhf GdLfGFjs