(3QhGFY ef GdGOH GdYQHi GdYUQ GdLGgdi(B- (3GdGSdGei(B- (3GdGehi(B- (3GdYHGSi (B/ s - (3gGTe UGdM efGYs ([S.N] : (3OGQ GdacQ GdYQHi , s, 1993)
Keywords: (3GdGOH GdYQHis; (3GdYUQ GdLGgdis