(3GdeYGjjQ GdTQYjI hGdfaSjI aj GdJMbjb GdLfGFj (B/s - (3GdJQceGfj, YOfGf NGdO s ((3GdQjGV (B: s (3GdeQcR GdYQHj ddOQGSGJ GdCefjI hGdJOQjH, s, 1993)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdJMbjb GdLfGFj s; (3bGfhf GdELQGAGJ GdLfGFjI s