ROZI, Fatkhur; 						WARDAYANI, Ari; 						SUROTO, Suroto.
 SUBGRUP FUZZY ATAS SUATU GRUP.
<strong>Jurnal Ilmiah Matematika dan Pendidikan Matematika</strong>, [S.l.], v. 6, n. 1, p. 33-44, june 2014.
ISSN 2550-0422.
Available at: &lt;<a href="http://jos.unsoed.ac.id/index.php/jmp/article/view/2901" target="_new">http://jos.unsoed.ac.id/index.php/jmp/article/view/2901</a>&gt;. Date accessed: 25 apr. 2024.
doi: <a href="https://doi.org/10.20884/1.jmp.2014.6.1.2901">https://doi.org/10.20884/1.jmp.2014.6.1.2901</a>.