ELFITRA. ANALISIS KELOMPOK HIRARKI UNTUK PERBANDINGAN SAMPEL BANYAK. Numeracy, [S. l.], v. 1, n. 2, p. 45–58, 2014. DOI: 10.46244/numeracy.v1i2.134. Disponível em: https://ejournal.bbg.ac.id/index.php/numeracy/article/view/134. Acesso em: 3 aug. 2026.