Wiwil Dzil Izzatil, Chairina Wirdiastuti and Syafriandi (2025) “Grouping of Regencies/Cities In West Sumatra Province Based On Economic Development Indicators Using The Self-Organizing Maps (SOM) Algorithm”, Jurnal MSA ( Matematika dan Statistika serta Aplikasinya), 13(2), pp. 64–72. doi: 10.24252/msa.v13i2.57741.