Wathen, D., A., L., W., G., M., S., A.(2012).Statistical techniques in business & economics (ed. xv).new york:Akademi Komunitas Perkebunan Yogyakarta.
Estilo MLA
Wathen, D., A., L., W., G., M., S., A..Statistical techniques in business & economics.ed. xvnew york:Akademi Komunitas Perkebunan Yogyakarta,2012.Text.