(3GdHjQhbQGWjI hGdeLJeY ai eUQ GdMOjKI (B/ s - (3HjQLQ, ehQhs; (3eMeO Jhajb QeRi (B((3eJQLe(B)s ([S.N] : (3ecJHI GdfgVI GdTQb , s, 1959)
Keywords: (3eUQs; (3GdGMhGd GdGLJeGYjIs; (3GdbGfhf GdGOGQis; (3GdehXahfs; (3GdGOGQI GdYGeIs; (3GdHjQhbQGWjIs; (3GdaSGO GdGOGQis; (3GdeSJNOehfs; (3JMdjd GdhXGFas; (3GJNGP GdbQGQGJs