M. V. S. . Handayani, “A Hybrid VADER–IndoBERT Framework for Robust Sentiment Analysis of Long and Ambiguous Indonesian Texts: ”, J. RESTI (Rekayasa Sist. Teknol. Inf.) , vol. 10, no. 4, pp. 918–928, Jul. 2026, doi: 10.29207/resti.v10i4.7377.