Grouping Regencies/Cities in West Sumatra Province Based on People’s Welfare Indicator Using Biplot Analysis. ujsds [Internet]. 30 Agustus 2025 [dikutip 2 Oktober 2026];3(3):355-62. Tersedia pada: https://ujsds.ppj.unp.ac.id/index.php/ujsds/article/view/407