KETERSEDIAAN OPERASI JOIN DIPERLUAS KOTERI-k TAK-TERDOMINASI. Jurnal Axiomath : Jurnal Matematika Dan Aplikasinya, [S. l.], v. 2, n. 2, p. 10–15, 2020. DOI: 10.46918/axiomath.v2i2.689. Disponível em: https://ejournals.umma.ac.id/index.php/axiomath/article/view/689. Acesso em: 30 jul. 2025.