Santiago, Francisco
The development of music in the Philippine islands
University of the Philippines, 1957
 Buku Teks SO
Foreman, John
Philippine Islands : political, geographical, social and commercial history of the Philippine archipelago
T. Fisher Unwin , 1906
 Buku Teks SO
Stow, Randolph, 1935-2010
To the Islands
Pan Books, 1982
 Buku Teks SO
Francisco, Juan R.
Philippine palaeography
Linguistic Society of The Philippines, 1973
 Buku Teks SO
Reyess, Elizabeth
Houses in the Philippine
Tuttle Publishing, 2012.
 Buku Teks SO