2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Bologna, Italy. IEEE: pp. 1208-1214; ISBN 978-1-5386-6010-2
2018 Electrical Power, Electronics, Communications, Controls and Informatics Seminar (EECCIS), Batu, Indonesia. IEEE: pp. 234-238; ISBN 978-1-5386-5252-7