(3VeGfGJ GdMQjI GdTNUjI CKfGA GdJMQj hGdGSJOdGd aj GdbGfhf GdebGQf (B/ s - (3GdMdHj, eMeO Ydj GdSGde YjGO s ((3GdchjJ (B: s (3LGeYI GdchjJ, s, 1981)
(3edGMb (B: (3U(B. 284-298.s
(3HHdjhLQGajI (B: (3U(B. 299-310. s
Keywords: (3GdJMbjb GdLfGFj s; (3GdbGfhf GdebGQf s; (3GdHMK GdLfGFj s; (3GdCOdI GdLfGFjI s