CIUBOTARIU, G., and L. M. CRIVEI. “ANALYSING THE ACADEMIC PERFORMANCE OF STUDENTS USING UNSUPERVISED DATA MINING”. Studia Universitatis Babeș-Bolyai Informatica, vol. 64, no. 2, Dec. 2019, pp. 34-48, doi:10.24193/subbi.2019.2.03.