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Boundaries: Badan Pusat Statistik (BPS - Statistics Indonesia), World Food Programme, OCHA ROAP (https://data.humdata.org/dataset/indonesia-administrative-boundary-polygons-lines-and-places-levels-0-4b) via geoBoundaries, CC BY 3.0 IGO (https://creativecommons.org/licenses/by/3.0/igo/); boundaries modified
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