Sylfanie Sekar Mayang and Ade Eviyanti, “Expert System for Diagnosing Early Symptoms of Stroke Using the Fuzzy Mamdani Method: Sistem Pakar Diagnosa Gejala Dini Penyakit Stroke Menggunakan Metode Fuzzy Mamdani”, PELS, vol. 1, no. 2, Jun. 2021.