Felix Aglen Ndaru Prasetya, author
Fakultas Ilmu Administrasi Universitas Indonesia, 2015
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Bevaola Kusumasari, author
universitas gajah mada, faculty of social and political sciences, 2015
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Asmarawati Handoyo, author
Universitas Muhammadiyah Yogyakarta, Department of Government and Study, 2016
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Ashari Cahyo Edi, author
institute for research and empowerment (IRE), Yogyakarta, 2014
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Ingrams, W.H.
HIS Majesty's Stationery Office, 1937
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