Rossafi, Mohamed, Hafida Massit, and Abdelkarim Kari. “Generalized Rational $ \alpha_{\ast}- $ Contraction in $ C^{\ast}- $algebra-Valued B-Metric Spaces”. Jurnal Matematika, Statistika dan Komputasi 19, no. 1 (September 7, 2022): 33-50. Accessed November 16, 2024. http://journal-old.unhas.ac.id/index.php/jmsk/article/view/21301.