Hadinata, R., and F. Achmadi. “Analisis Kualitas Layanan Dengan Pendekatan Metode Kano”. Proceedings of the National Conference on Electrical Engineering, Informatics, Industrial Technology, and Creative Media, Vol. 1, no. 1, May 2019, pp. 384-8, https://conferences.ittelkom-pwt.ac.id/index.php/centive/article/view/68.