(3hba GdOYhi GdeOfjI dMjf GdaUd aj GdOYhi GdLfGFjI (B/ s - (3EOhGQ ZGdj GdOgHj(B.s ((3GdbGgQI (B: s (3OGQ GdfgVI GdYQHjI,s, 1978)
(3cTGaGJ (B: (3UaMI (B193-196.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeMGceGJ GdLfGFjIs -- (3eUQs; (3GdeMGceGJ GdeOfjIs -- (3eUQs; (3GdOYhi GdeOfjIs -- (3eUQs