(3djdi h GdcfR (B: s (3eSQMjI ZfGFjI ddCWaGd (B/ s - (3GdgOgO, QhVI GdaQNs ((3YeGf (B:s, 1997)
Keywords: (3GdeSQMjI GdCQOfjIs; (3GdCQOfs; (3fGTFhf UZGQ (B(10-14) (3SfIs