(3GdSdWI ai GdeLJeY GdGTJQGci (B/ s - (3SYjO (B: (3UHMi YHOg s ([(3GdbGgQI (B: s (3O (B. (3f(B] : s, 1980)
(3jTJed Ydi GQLGYGJ HHdjhLQGajIs
Keywords: (3GdGTJQGcjIs; (3GdSdWI s