Sharer, Robert J., author
McGraw-Hill, 2003
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Departemen Kebudayaan dan Pariwisata - Balai Arkeologi Medan,
Majalah, Jurnal, Buletin
Kalliopi Fouseki, Torgrim Sneve Guttormsen, Grete Swensen
Routledge, 2020
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Kletter, Raz, author
Routledge, 2020
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Kelly, Robert L.,author
Wadsworth, 2010
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