(3GYLGR GdbQGf hGdHdGZI GdfHhjI (B/ s - (3eUWai UGOb GdQGaYis ([S.N] : (3OGQ GdcJGH GdYQHi , s, 1990)
Keywords: (3GddZI GdYQHjIs; (3GdHdGZI GdYQHjIs; (3GdeUWdMGJs; (3GddZI GdYQHjI(B, (3JGQjNs; (3GdbQGf (B- (3GYLGRs