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Copyright (c) 2014 Mohamad Afrizal, Amir Ma'ruf
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
 ISSN: 2302-9269 (Online)
Abstract views : 818
Copyright (c) 2014 Mohamad Afrizal, Amir Ma'ruf
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.