Black, James Menzies, author
Pustaka Binawan Pressindo, 1987
Buku Teks
Halloran, Jack, 1931-, author
Prentice-Hall, 1986
Buku Teks
Mosley, Donald C., author
South-Western Publishing, 1985
Buku Teks
J. Winardi, author
RajaGrafindo Persada, 2002
Buku Teks
Hadari Nawawi, author
Gadjah Mada University Press, 2006
Buku Teks