M. Khairul Anam, T. P. Lestari, L. Efrizoni, N. S. Handayani, and I. Andhika, “Sentiment Analysis Optimization Using Ensemble of Multiple SVM Kernel Functions”, J. RESTI (Rekayasa Sist. Teknol. Inf.) , vol. 9, no. 4, pp. 905–914, Aug. 2025, doi: 10.29207/resti.v9i4.6708.