Costa, H. de la
Solidaridad Publishing House, 1967
Buku Teks
Costa, H. de la
Bookmark, 1965
Buku Teks
Majul, Cesar A., author
The University of The Philippines Press, 1973
Buku Teks
Majul, Cesar A., author
University of the Philippines Press, 1999
Buku Teks
Steinberg, David J. (David Joel), author
Westeriew Press, 1990
Buku Teks