Noviandy, T. R., M. Patwekar, and F. Patwekar. “Activity Cliffs and Machine Learning Generalization in QSAR: Why Similar Molecules Remain Difficult to Predict”. Heca Journal of Applied Sciences, vol. 4, no. 2, Sept. 2026, pp. 142-60, doi:10.60084/hjas.v4i2.462.