Saputra , I.A.A., Sidiq, M.R., Guritno, S.S. and Cahyono, H.D. 2024. STOCK PREDICTION PERFORMANCE OPTIMIZATION: ENHANCING COVARIANCE MATRIX WITH KNN. Jurnal Teknik Informatika (Jutif). 5, 6 (Dec. 2024), 1561-1567. DOI:https://doi.org/10.52436/1.jutif.2024.5.6.2399.