Guevarra, G. E. C., llen R. T. S. Koizumi, J. N. B. Moreno, J. C. B. Reccion, C. M. O. Sy, and J. R. B. del Rosario. “Development of a Quadrotor With Vision-Based Target Detection for Autonomous Landing”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), vol. 10, no. 1-6, Feb. 2018, pp. 41-45, https://jtec.utem.edu.my/jtec/article/view/3665.