Budiyanto, A., Romli, M., Anggraeni, E., Wiloso, E. I. and Hadipernata, M. (2026) “Clustering in Chemical Characteristics and Contaminant Metal Levels of Indonesian Sago Starch: A Comprehensive Analysis of Purity and Quality”, Science and Technology Indonesia, 11(3), pp. 758–772. doi: 10.26554/sti.2026.11.3.758-772.