2014 International Conference on Electrical Engineering and Computer Science (ICEECS), Kuta, Bali, Indonesia. IEEE: pp. 269-273; ISBN 978-1-4799-8477-0
2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Chicago, IL, USA. IEEE: pp. 6549-6552; ISBN 978-1-4244-7929-0