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 May 19, 2024. https://ijrdo.org/index.php/cse/article/view/3540.