N. Chamidah, N. Siregar, M. Al Farizi, B. Pratama, A. Faiza, and M. Fibryan, “CATEGORICAL ANALYSIS TO PERCEPTIONS OF GOVERNMENT POLICY IN ELECTRICITY FUEL MANAGEMENT AS ALTERNATIVE TO SUBSTITUTE OIL FUEL USING CHI-SQUARE TEST”, BAREKENG: J. Math. & App., vol. 17, no. 3, pp. 1287-1300, Sep. 2023.