(3GdJYhjVGJ aj GdbGfhf GdOhdj hJWHjbGJgG Ydi GdYQGb (B/ s - (3eMeO , Ndjd YHO GdeMSf Ndjd s ((3HZOGO (B: s (3HjJ GdMceI , s, 2001)
Keywords: (3GdbGfhf GdOhdj s