Keun-Young Choi, Hyun-Chang Lee and Kyu-Tae Lee
Journal of Engineering and Applied Sciences 13 ( 1 SI ): 2486 - 2491 , 2018
Keun-Young Choi, Hyun-Chang Lee and Kyu-Tae Lee
Journal of Engineering and Applied Sciences 13 ( 12 SI ): 9491 - 9496 , 2018