Hammerle, P. Johannes M., author
Yayasan Pusaka Nias, 2005
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Hammerle, Johannes Maria
Yayasan Pusaka Nias , [date of publication not identified]
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[Ilmu Perpustakaan Universitas Indonesia, ], 2016
UI - Makalah dan Kertas Kerja
editor, Pudentia Maria Purenti Sri Suniarti Karnadi
Asosiasi Tradisi Lisan, 2008
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editor, Pudentia Maria Purenti Sri Suniarti Karnadi
Yayasan Obor Indonesia, 2015
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