Herlambang, Teguh, and Puspandam Katias. “ESTIMASI PROFITABILITY PADA PT.XYZ DENGAN ALGORITMA UNSCENTED KALMAN FILTER”. MathVision : Jurnal Matematika, vol. 2, no. 2, Oct. 2020, pp. 38-43, http://journal.unirow.ac.id/index.php/mv/article/view/173.