Hoang, S. H., Nguyen, D. M., Nguyen, D. T., Nghiem, T. H., Dinh, X. T. D., & Le, V. T. (2021). Designing a Partly Self-Powered Keyboard Based on Triboelectric Effect. JST: Smart Systems and Devices, 31(2), 35-42. https://doi.org/10.51316/jst.152.ssad.2021.31.2.5