(3cJH Ndb GdGfSGf ; s (3eY, JMbjb cJGH ZGjI GdGMSGf aj Ndb GdGfSGf ddSjhWj (B/ s - (3UGdM, fgGO MShfj, s; (3GdSjhWj, YHO GdQMef Hf GHj HcQ Hf eMeO, s 849-911 (3gLQj(B. s ([(3HZOGO, GdYQGb(B] : s (3hRGQI GdKbGaI hGdGYdGe, s, 1989)
(3SfI GdGjOGY (B: 1989.s
(3GdGUd QSGdI LGeYjI(B((3OcJhQGg(B)- (3LGeYI HZOGO, cdjI GdBOGH, (B1987.s
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B309-320.s
(3GdfU HGddZI GdYQHjI heSJNdU HGddZI GdGfLdjRjI(B.s
Keywords: (3LSe GdGfSGf s -- (3eYGLe(B.s