Irwandi, I., Sitompul, O.S. and Sembiring, R.W. 2021. Performance Analysis of Subtractive Clustering Algorithm in Determining the Number and Position of Cluster Centers. Randwick International of Social Science Journal. 2, 2 (Apr. 2021), 178-184. DOI:https://doi.org/10.47175/rissj.v2i2.241.