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Landslides buries 3 DPWH buildings four bodies retrieved, 14 survivors rescued, 10 remain missing
Julkaisussa Manila Bulletin (2018)Artikkeli -
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Ang sinaunang paraan ng paghatol at pagpaparusa ng mga igorot sa Bontoc
Julkaisussa Liwayway (2014)Artikkeli -
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Gray love the career of Gov. John Early in the Cordilleras
Julkaisussa Philippine Studies: Historical and Ethnographic Viewpoints (2013)Artikkeli -
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The education of Philippine hill tribes in the American era
Julkaisussa Bulletin of the American Historical Collection (2012)Artikkeli -
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