Arrigo, Bruce A., author
West/Wadsworth, 1999
Buku Teks
Johnson, Elmer Hubert
Ill Dorsey Pres, 1974
Buku Teks
Josine Junger-Tas
Springer, 2012
eBooks
edited by David Garland and Richard Sparks
Oxford University Press, 2000
Buku Teks
Hendro Tommy Nugraha, author
2015
UI - Tugas Akhir