(3GdZQGeI GdLfGFjI (B:s (3OQGSI ebGQfI ai GdWHjYI GdbGfhfjI ddZQGeI hbjeJgG GdYbGHjI (B/s - (3SejQ GdLfRhQis ([(3ecGf GdfTQ ZjQ eMOO(B}s {(3GdfGTQ ZjQ eMOO (B}s, 1967)
(3jTJed Ydj GQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdEfLdjRjI s
Keywords: (3GdZQGeIs; (3GdbGfhf GdLfGFj(B.s