Haninda, R. N., and N. D. Indriyani. “Strategi Peningkatan Kualitas Layanan Melalui Digitalisasi Di Telkomsel Grapari Plaza Marina Surabaya”. Yos Soedarso Economic Journal (YEJ), vol. 7, no. 1, Apr. 2025, pp. 7-14, https://ejurnal.yossoedarso.ac.id/index.php/ysej-server/article/view/YEJ7102.