F. A. Apriansyah, A. Hermawan, and D. Avianto, “Optimization of K Value in KNN Algorithm for Spam and HAM Classification in SMS Texts”, Int. J. Softw. Eng. Comput. Sci., vol. 4, no. 2, pp. 767–779, Aug. 2024, doi: 10.35870/ijsecs.v4i2.2681.