AHMAD KHAIRUL UMAM; KRISNA ADILIA DANISWARA. TITIK TETAP REICH DI DALAM RUANG b-METRIK. Jurnal Matematika dan Sains (JMS), Lamongan, Indonesia, v. 2, n. 2, p. 217–222, 2022. DOI: 10.552273/jms.v2i02.175. Disponível em: https://ejournal.billfath.ac.id/index.php/jms/article/view/175. Acesso em: 31 jan. 2025.