S. R. A. Puteri Baharie, Sugiyarto Surono, and Aris Thobirin, “Hybrid Gradient Descent Grey Wolf Optimizer for Machine Learning Performance Enhancement”, J. RESTI (Rekayasa Sist. Teknol. Inf.) , vol. 9, no. 1, pp. 146–152, Feb. 2025, doi: 10.29207/resti.v9i1.6203.