(3cja GJGcO ef UMI Lfjfi ? (B/ s - (3cQSHfi, dGcdGf Oi(B0s; (3OQjOL, QGfOGs ((3GdQjGV (B: s (3ecJHI GdYHjcGf , s, 1998)
Keywords: (3GdGLfI, Ydes; (3GdGLfI (B- (3GeQGVs; (3GdGLfI (B- (3JGKjQ GdGTYI Ydis; (3GdGLfI (B- (3YjhH hJThgGJs