Kabiljagić, Mirza, Josef Wachtler, Markus Ebner, and Martin Ebner. “Math Trainer As a Chatbot Via System (Push) Messages for Android”. International Journal of Interactive Mobile Technologies (iJIM) 16, no. 17 (September 8, 2022): pp. 75–87. Accessed March 28, 2024. https://online-journals.org/index.php/i-jim/article/view/33351.