Ngantung, V. A., J. R. E. Tampi, and A. Y. Punuindoong. “Pengaruh Kualitas Pelayanan Dan Harga Terhadap Loyalitas Pelanggan IndiHome Kota Tomohon”. Productivity, vol. 3, no. 4, May 2022, pp. 325-30, https://ejournal.unsrat.ac.id/v3/index.php/productivity/article/view/42296.