(3ai eMceI GdJGQjN (B/ s - (3YHOGdhGOhO GHQGgje TdHis ([S.N] : (3OGQ GdTQhb , s, 1991)
Keywords: (3GdGSdGes; (3OaY GdeWGYf Yf GdGSdGes; (3GdeQCIs; (3GdeSdehfs