(3UfGYI ehGO GdJLejd GdeYJeOI Ydi GdGYTGH hGdehGO GdeUfYI (B: s (3GdLRA GdKGfi (B/ s - (3LYaQ Wg GdgGTeis ((3ShQjG (B: s (3OGQ GdUaG , s, 1997)
Keywords: (3eSJMVQGJ GdJLejds; (3GdecjGLs; (3GdeQCI (B- (3JLejds; (3GdTYQ (B- (3JUajas; (3GdHTQi (B- (3JLejds; (3GdGXGaQ (B- (3JLejds