Erda, G., Mega Aulia, S. and Erda, Z. 2023. Classifiying The Factors Influencing The Human Development Index in Riau Province using Principal Component Analysis. Parameter: Journal of Statistics. 2, 3 (Jan. 2023), 17-23. DOI:https://doi.org/10.22487/27765660.2022.v2.i3.16203.