Abdullahi, M. S., A. I. Garba, J. Abubakar, and P. Kumam. “F-Contraction-Type Fixed Point Theorems in B-Metric Spaces”. Thai Journal of Mathematics, vol. 22, no. 2, June 2024, pp. 323–334, https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1648.