Siregar, N.R.A.A. et al. 2026. Penalized Spline Semiparametric Logistic Regression for Modelling Coronary Heart Disease Risk Based on Demographic and Lifestyle Factors. Statistics, Optimization & Information Computing. 15, 6 (Mar. 2026), 4736–4756. DOI:https://doi.org/10.19139/soic-2310-5070-3334.