Wilopo, author
Cornell University, 1959
Buku Teks
edited by Muge Aknur
Universal-Publishers, 2012
Buku Teks
Doody, Francis S.
New York, N.Y. Random c.1965,
Buku Teks
edited by Jack Elinson, Anne Mooney, and Athilia E. Siegmann
Westview Press, 1977
Buku Teks
Perthel, Dirk, author
Amsterdam University, 1981
Buku Teks