Delfia Hidayatul Fitri, et al. “Komparasi Spline Kubik Not-a-Knot Dan Natural Pada Lompatan En-Nesyri Piala Dunia 2022”. Limits: Journal of Mathematics and Its Applications, vol. 22, no. 3, Nov. 2025, pp. 281-92, doi:10.12962/limits.v22i3.6456.