Guillermo, R. G., & Agabin, M. E. (2013). A German travels to the north in 1878: Golden Anitos, bird-scaring machines, and the tree of justice. Philippine Studies: Historical and Ethnographic Viewpoints.
Lua i Stíl Chicago (17ú heag.)Guillermo, Ramon G., agus Maria Eliza Agabin. "A German Travels to the North in 1878: Golden Anitos, Bird-scaring Machines, and the Tree of Justice." Philippine Studies: Historical and Ethnographic Viewpoints 2013.
Lua MLA (9ú heag.)Guillermo, Ramon G., agus Maria Eliza Agabin. "A German Travels to the North in 1878: Golden Anitos, Bird-scaring Machines, and the Tree of Justice." Philippine Studies: Historical and Ethnographic Viewpoints, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.