Asna, A. “NALISIS ERILAKU ONSUMEN ALAM EPUTUSAN EMBELIAN EPEDA OTOR ADA AHASISWA E-ALANG AYA”. urnal konomi odernisasi, vol. 6, no. 2, June 2010, pp. 130-9, http://ejournal.unikama.ac.id/index.php/JEKO/article/view/35.