Santos , D. R. dos ., T. E. B. de C. . Silva, C. E. S. . Villagrán, and T. C. . Ribeiro. “Clustering of Assets: An Alternative to Assist in Financial Decisions”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 78, no. 1, Apr. 2021, pp. 150-64, https://www.asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/6789.