Acknowledgement
The authors would like to express their gratitude to Atun Raudotul Ma’rifah as a mentor, the Universitas Harapan Bangsa, Indonesia, and the University of Szeged, Hungary.
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The authors would like to express their gratitude to Atun Raudotul Ma’rifah as a mentor, the Universitas Harapan Bangsa, Indonesia, and the University of Szeged, Hungary.
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