Blust, Robert; Trussel, Stephen (2010). "*papan: plank, board; floor boards of house". Austronesian Comparative Dictionary. Max Planck Institute for Evolutionary Anthropology. Dicapai pada 29 Oktober 2022.
maoridictionary.co.nz
"papa". Māori Dictionary. Te Ipukarea. Dicapai pada 29 Oktober 2022.