B. Satya, M. P. Kurniawan, T. Indryatmoko, and A. As’adurrofiq, “Reliable Intent Detection in Public Service Chatbots Using Hybrid IndoBERT and Bidirectional Long Short-Term Memory with Confidence-Based Decision Strategy ”, J. Tek. Inform. (JUTIF), vol. 7, no. 3, pp. 2906–2919, Jun. 2026.