Santrisna, I Putu, Dewa Gede Hendra Divayana, and I Made Gede Sunarya. 2026. “Evaluation of Linear Regression and Ridge Regression As Baselines for Predicting Indonesia’s CO₂ Emissions”. Greenation International Journal of Engineering Science 4 (2):180-92. https://doi.org/10.38035/gijes.v4i2.1217.