Aranete, Fransisco
Areneta University, 1967
Buku Teks
edited by Ralph Braibanti and Joseph J. Spengler
Duke University Press , 1961
Buku Teks
Taft, Philip, author
Rinehart, 1950
Buku Teks
Research Institute of Udayana University, 1997
Buku Referensi
Harris, H.
Binacipta, 1978
Buku Teks