(3eSFhdjI GdGOGQI Yf GYeGd ehXajgG aj GdYQGb eY GdGTGQI ddbGfhfjf GdeUQj hGdaQfSj (B/ s - (3GdajGV, GHQGgje Wg, s ((3GdbGgQI (B[(3eUQ(B] : s (3OGQ GdfgVI GdYQHjI, (B393 (3g`(B. = 1973.s, 1973)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B629-639.s
Keywords: (3GdbGfhf GdGOGQjs -- (3GdYQGb(B.s; (3GdehXahfs -- (3hVY bGfhfj, bhGfjf, GdN(B.s -- (3GdYQGb(B.s; (3GdbGfhf GdGOGQjs -- (3aQfSG(B.s; (3GdbGfhf GdGOGQjs -- (3eUQ(B.s