Novel Insights into $C$-Class Functions and Fixed Point Theorems for $(\psi - \phi)$-Contractive Mappings within $G_{\mathcal{F}}$-Metric Spaces. Eur. J. Pure Appl. Math. [Internet]. 2026 Feb. 16 [cited 2026 Feb. 23];19(1):7331. Available from: https://www.ejpam.com/ejpam/article/view/7331