(3cJGH GdLQGFe GdJj JMUd dBMGO GdfGS (B:s (3LQGFe GdOe hGdeGd (B/s - (3Ydj QGTOs ((3GdbGgQI (B:s (3ecJHI SjO YHO Gddg hgHI ,s, 1972)
. 515-507(3HHdjhLQGajG(B: (3UaMGJ(B.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajIs
Keywords: (3GdLQGFe GdeGSI HGdCTNGUs