(3KhQI (B14(3JehR (B1958(3aj GdYQGb(B:s - (3GdRHjOj ,djK YHO GdMSf LhGOs ((3HZOGO(B:s (3ecJHI GdjbXI GdYQHjI,s, 1981)
Keywords: (3GdYQGb(B-(3JGQjN(B-(3KhQI (B1958s