Van Khanh, P., & Vu Anh Tuan, P. (2025). BUILDING A VIETNAMESE MATH CHATBOT BASED ON RAG AND LLM: SYSTEM DESIGN, IMPLEMENTATION AND EXPERIMENTAL EVALUATION. HNUE Journal of Science: Journal of Natural Sciences, 70(4), 43-56. https://doi.org/10.18173/2354-1059.2025-0053