(3GdbVGA GdEOGQj (B/s - (3eMeO GdTGaYi GHh QGSs ([(3ecGf GdfTQ ZjQ eYQha(B]:s [(3GSe GdfGTQ ZjQ eYQha(B](3,s, 1962)
. 433-429(3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU CZdHg HGddZI GdYQHjI HYV GdfUhU GdEfLdjRjI hGdaQfSjIs
Keywords: (3GdbGfhf GdEOGQjs; (3GdbVGA GdEOGQj hhXGFags