(3MdMhd Hjf GdeGVj h GdMGVQ (B/ s - (3CHh QjGf, eMeO eMjSfs ((3GdNdjd (B:s (3QGHWI GdLGeYjjf (B- (3OGFQI GdHMK h GdJWhjQ,s, 1993)
Keywords: (3JGQjN adSWjfs; (3GdNdjds; (3GdJGQjNs