Sunardi, Kartika Setyaningsih, and Nofitriyani. “Design Using C4.5 Algorithm to Recognize Symptoms of Acute Respiratory Infections in Children Less Than 5 Years”. Jurnal Permata Indonesia 14, no. 2 (November 27, 2023): 117 – 123. Accessed October 18, 2025. https://jurnal.permataindonesia.ac.id/index.php/JPI/article/view/251.