Ammari, Salsabila, Muh Nur, and Naimah Aris. “Fixed Point Theorem on Contractive Mapping in Standard 2-Normed Spaces”. Jurnal Matematika, Statistika dan Komputasi 18, no. 1 (September 2, 2021): 93-101. Accessed April 18, 2024. https://journal.unhas.ac.id/index.php/jmsk/article/view/14394.