Pokhrel S, Ganesan S, Akther T, Karunarathne L. Building Customized Chatbots for Document Summarization and Question Answering using Large Language Models using a Framework with OpenAI, Lang chain, and Streamlit. J. Inf. Technol. Digit. World [Internet]. 2024 Apr. 8 [cited 2026 Sep. 15];6(1):70-86. Available from: https://irojournals.com/itdw/article/view/1400