Trewartha, Glenn T., author
Gadjah Mada University Press, 1995
Buku Teks
Wila Huky
Usaha Nasional, 1982
Buku Teks
Supriyono, author
Buku Teks
Harsojo, author
Binacipta, 1967
Buku Teks
R.M. Koentjaraningrat, 1923-1999, author
Aksara Baru, 1974
Buku Teks