1. Banchs, R. E., & Li, H. (2012). Iris: a chat-oriented dialogue system based on the vector space model. Proceedings of the ACL 2012 System Demonstrations, Association for Computational Linguistics, 37-42.
2. Behera, B. (2016). Chappie - A Semi-Automatic Intelligent Chatbot. LCPST. Retrieved from https://www.chatbots.org/paper/chappie_-_a_semi-automatic_intelligent_chatbot/
3. Bigham, J. P., Aller, M. B., Brudvik, J. T., Leung, J. O., Yazzolino, L. A., & Ladner, R. E. (n.d.). Inspiring blind high school students to pursue computer science with instant messaging chatbots. ACM SIGCSE Bulletin, 40, 449-453.
4. Daly, L. (2011). An interactive guide to writing bots in Python. Retrieved from https://apps.worldwritable.com/tutorials/chatbot/
5. Detection and Analysis of Human Emotions through Voice and Speech Pattern Processing