Alpiana, Intan, Wiyli Yustanti, and Yuni Yamasari. “Otomatisasi Klasifikasi Tingkat Urgensi Keluhan E-Layanan Unesa Berbasis TF-IDF Dan Logistic Regression ”. Ranah Research : Journal of Multidisciplinary Research and Development 8, no. 1 (October 29, 2025): 300-312. Accessed January 28, 2026. https://www.jurnal.ranahresearch.com/index.php/R2J/article/view/1912.