Kamfa K, Yunus RB, Lawan MA. AN IMPROVED HYBRID CONJUGATE GRADIENT METHOD WITH SPECTRAL STRATEGY AND ITS APPLICATIONS IN COVID-19 PREDICTION. BAREKENG: J. Math. & App. [Internet]. 1Sep.2025 [cited 14Nov.2025];19(4):2803-14. Available from: https://ojs3.unpatti.ac.id/index.php/barekeng/article/view/17857