(3GdbQGQ GdLeghQj HbGfhf hhSGFd QbGHJg (B/ s - (3CMeO gHgs ([(3GdbGgQI(B] : s (3OGQ GdGJMGO GdYQHj ddWHGYI, s, 1973)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdQbGHI GdbVGFjI dGYeGd SdWGJ GdOhdIs; (3GdSdWI GdbVGFjIs