Ford, John
Routledge, 1997
Buku Teks
Hoffmann, Charles G.
Twayne , 1967
Buku Teks
Sward, Keith
Atheneum, 1948
Buku Teks
Eggan, Fred
Chicago Philippine Studies Program University of Chicago [t.th.]
Buku Teks
Haydr Suhardy, author
2018
UI - Skripsi (Membership)