Valentika, N., Sumertajaya, I. M., Wigena, A. H., & Afendi, F. M. (2026). Robust PCA-Based Multivariate Time Series Clustering for Weekly Indonesian Food Commodity Prices with Missing Data. Statistics, Optimization & Information Computing, 16(3), 1968–1983. https://doi.org/10.19139/soic-2310-5070-3618