N. Hidayah Mohamed Isa, M. Othman, and S. Ariffin Abdul Karim, “Multivariate Matrix for Fuzzy Linear Regression Model to Analyse The Taxation in Malaysia”, IJET, vol. 7, no. 4.33, pp. 78–82, Dec. 2018, doi: 10.14419/ijet.v7i4.33.23490.