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Ha-Sung Kong, Su-Hyun Park and Gap-Hwan Park
Journal of Engineering and Applied Sciences 12 ( 4 ): 888 - 893 , 2017
Kyung-Jin Jin and Ha-Sung Kong
Journal of Engineering and Applied Sciences 12 ( 5 ): 1092 - 1096 , 2017
Ha-Sung Kong, Ran-Hee Lee and Seok-Jin Seo
Research Journal of Applied Sciences 11 ( 12 ): 1597 - 1602 , 2016
Research Journal of Applied Sciences 11 ( 12 ): 1603 - 1607 , 2016
Jin Chae and Ha-Sung Kong
Research Journal of Applied Sciences 11 ( 12 ): 1608 - 1612 , 2016
The Social Sciences 11 ( 29 ): 6983 - 6987 , 2016
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The Social Sciences 11 ( 29 ): 6988 - 6992 , 2016