Henra, Zupri, and Akhmad Zulkifli. “T-BOT As an Effort to Overcome Speech Delay in Children”. Journal of Applied Engineering and Technological Science (JAETS) 4, no. 1 (October 25, 2022): 307–311. Accessed July 7, 2025. https://www.yrpipku.com/journal/index.php/jaets/article/view/1048.