1.
Zen BP, Susanto I, Finaliamartha D. TF-IDF Method and Vector Space Model Regarding the Covid-19 Vaccine on Online News. SinkrOn [Internet]. 2021Oct.10 [cited 2026Oct.9];5(2B):69-7. Available from: https://www.jurnal.polgan.ac.id/index.php/sinkron/article/view/11179