N. T. Romadloni, N. D. Septiyanti, C. H. Pratomo, W. Kurniawan, and R. A. K. N. Bintang, “CLASSIFICATION OF SMS SPAM WITH N-GRAM AND PEARSON CORRELATION BASED USING MACHINE LEARNING TECHNIQUES ”, SJRI, vol. 3, no. 2, pp. 967–977, Feb. 2024.