Muchlis, Esa Firmansyah, Agus Mulyanto, Nasril Sany, and Atikah Rifdah Ansyari. “Leveraging LangChain for Enhanced Tourism Guidance: A Retrieval-Augmented Generation Approach for SmartTour Chatbot”. International Journal of Engineering Continuity 5, no. 1 (April 16, 2026): 139–153. Accessed April 22, 2026. https://ejournal.sultanpublisher.com/index.php/ijec/article/view/533.