MAS’UD, Syamsuddin. Beberapa Perumuman Kontraksi Kannan di Ruang Metrik Klasik yang Terkait Konsep Titik Tetap. Journal of Mathematics, Statistics, and Mathematics Education, [S. l.], v. 2, n. 1, p. 42–51, 2026. Disponível em: https://journal.ininnawaparaedu.com/jmsme/article/view/709. Acesso em: 10 jun. 2026.