Hadijati, Mustika, et al. “Metaheuristic Search in Mixed Kernel and Spline Truncated Non-Parametric Regression”. (IJCSAM) International Journal of Computing Science and Applied Mathematics, vol. 11, no. 2, Dec. 2025, pp. 87-93, doi:10.12962/j24775401.ijcsam.v11i2.8841.