2017 IEEE 3rd International Conference on Electro-Technology for National Development (NIGERCON), Owerri, Nigeria. IEEE: pp. 271-274; ISBN 978-1-5090-6423-6
2017 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), Pavia, Italy. IEEE; ISBN 978-1-5386-0481-6