[1]
Manullang, J., Sirait, P. and Andri, A. 2020. Aplication of Validity Index in K Means and Fuzzy C Means. Jurnal Mantik. 4, 2 (Aug. 2020), 1430-1438. DOI:https://doi.org/10.35335/mantik.Vol4.2020.958.pp1430-1438.