Sumalai, P., and I. Inchan. “Existence Theorems of Fixed Points for \((\mathcal{Z}, \lambda)\)-Enriched Contraction in Convex Metric Spaces”. Bangmod International Journal of Mathematical and Computational Science, vol. 11, Oct. 2025, pp. 410-2, doi:10.58715/bangmodjmcs.2025.11.18.