Riski, Muhammad, Muhammad Fikry, and Yusra Yusra. “Klasifikasi Sentimen Ulasan Aplikasi WhatsApp Di Play Store Menggunakan Metode K-Nearest Neighbor”. KLIK: Kajian Ilmiah Informatika dan Komputer 4, no. 1 (August 25, 2023): 438-444. Accessed May 24, 2026. http://www.djournals.com/klik/article/view/1050.