The Manila review : the Philippine journal of literature and arts
Manila : Bureau of National and Foreign Infermation
 Majalah, Jurnal, Buletin
Francisco, Juan R.
Philippine palaeography
Linguistic Society of The Philippines, 1973
 Buku Teks
Forbes, W. Cameron
Philippine Islands
Houghton Mifflin, 1928
 Buku Teks
Reyess, Elizabeth
Houses in the Philippine
Tuttle Publishing, 2012.
 Buku Teks
Environment
 Buku Teks