Prariesa, Dina, Udjianna Sekteria Pasaribu, and Utriweni Mukhaiyar. 2026. “Utilizing Trajectory Matrices and Singular Value Decomposition (SVD) for Multivariate Transformation in Time Series Analysis”. Journal of the Indonesian Mathematical Society 32 (1):1966. https://doi.org/10.22342/jims.v32i1.1966.