Andry, J.F. et al. 2019. Pengukuran Kualitas Website Elevenia Menggunakann Webqual 4.0 Dan Importance Performance Annalysis. CESS (Journal of Computer Engineering, System and Science). 4, 1 (Jan. 2019), 33–38. DOI:https://doi.org/10.24114/cess.v4i1.11335.