A. Fadllullah, D. D. Kamudi, M. Nasir, A. Z. Arifin, and D. Purwitasari, “WEB NEWS DOCUMENTS CLUSTERING IN INDONESIAN LANGUAGE USING SINGULAR VALUE DECOMPOSITION-PRINCIPAL COMPONENT ANALYSIS (SVDPCA) AND ANT ALGORITHMS”, Jurnal Ilmu Komputer dan Informasi, vol. 9, no. 1, pp. 17-25, Feb. 2016.