Siregar, A.U., Lubis, A., Darmana, A. and Suyanti, R.D. 2022. Analysis of Student Cognitive Ability using The K-Means Cluster and Rasch Model (Winsteps) on Chemical Materials through Zoom Meeting. Jurnal Komunikasi Pendidikan. 6, 2 (Jul. 2022), 91–101. DOI:https://doi.org/10.32585/jkp.v6i2.2474.