Wen Xinhao, Ma Qihua, Zhang Xurui, and Xu Shicheng. “Multifunctional Intelligent Invisible Bookcase Bed Based on Voice Control”. IJRDO -Journal of Computer Science Engineering 6, no. 3 (April 6, 2020): 01-08. Accessed January 21, 2026. http://13.234.104.160/index.php/cse/article/view/3540.