Ajiboye, A. T., A. R. Ajayi, and S. L. Ayinla. “Effects of PID Controller on Performance of Dish Antenna Position Control for Distributed Mobile Telemedicine Nodes”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, Vol. 15, no. 2, June 2019, pp. 304-13, https://azojete.com.ng/index.php/azojete/article/view/72.