SATYAHADEWI, N.; SINAGA, S.; PERDANA, H. HIERARCHICAL CLUSTER ANALYSIS OF DISTRICTS/CITIES IN NORTH SUMATRA PROVINCE BASED ON HUMAN DEVELOPMENT INDEX INDICATORS USING PSEUDO-F. BAREKENG: Jurnal Ilmu Matematika dan Terapan, v. 17, n. 3, p. 1429-1438, 30 set. 2023.