Pokhrel, Sangita, Swathi Ganesan, Tasnim Akther, and Lakmali Karunarathne. “Building Customized Chatbots for Document Summarization and Question Answering Using Large Language Models Using a Framework With OpenAI, Lang Chain, and Streamlit”. Journal of Information Technology and Digital World 6, no. 1 (April 8, 2024): 70–86. Accessed September 15, 2026. https://irojournals.com/itdw/article/view/1400.