Halim, I., Saptari, A. ., A. Perumal, P. ., Zulkeflee Abdullah, Shariman Abdullah, & Mohd Nazrin Muhammad. (2022). A Review on Usability and User Experience of Assistive Social Robots for Older Persons. International Journal of Integrated Engineering, 14(6), 102-124. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/8566