KISTI, Vuji Annisa; HAQ, Fadiah Hasna Nadiatul; HIDAYANA, Rizki Apriva. Implementing the Variance-Covariance Method for Assessing Market Transaction Risks in Raw Material Sector Stocks. Operations Research: International Conference Series, [S. l.], v. 5, n. 2, p. 56–61, 2024. DOI: 10.47194/orics.v5i2.310. Disponível em: https://www.iorajournal.org/index.php/Orics/article/view/310. Acesso em: 14 jan. 2026.