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This research was funded and supported by Ministry of Research, Technology, and Higher Education, Indonesia under the PUPT grant (751/UN1-P.III/LT/DIT-LIT/2016) year of 2016-2019.
This research was financially supported by Directorate of Research and Community Engagement of Ministry of Research, Technology and Higher Education, the Republic of Indonesia, under the University's Excellence Research (PUPT) Grant in the fiscal year 2015-2016.
The authors would like to thank to the Minister of Education and Culture of Indonesia who have financed this research by Penelitian Unggulan Perguruan Tinggi (PUPT 2012-2014).