Tran , T. H., V. T. Nguyen, H. M. Le, and T. C. T. Duong. “An Advanced Quadcopter With Pid Controller Using Both Gyroscopes and Accelerometers”. Journal of Technical Education Science, vol. 11, no. 2, June 2016, pp. 3-11, https://www.jte.edu.vn/index.php/jte/article/view/414.