Alviari, I., I. Monika, S. Sarina, L. Saputra, and B. D. A. Prayanti. “Implementation of Fuzzy Logic Using The Tsukamoto Method to Forecast Gold Price in Indonesia”. EIGEN MATHEMATICS JOURNAL, vol. 8, no. 1, Apr. 2025, pp. 34-43, doi:10.29303/emj.v8i1.251.