Shaffer-Koros, Carole M., author
St. Martin`s Press, 1994
Buku Teks
Terry, Morgan, author
Pearson, 2007
Buku Teks
editors, Junaidi, Elda N. Auliansani, Farah S. Azizah, M. Umar Sadikin
UI Publishing, 2020
Buku Teks
McKenzie, Richard B., author
Richard D. Irwin, 1981
Buku Teks
Ramsay, James W.
Prentice Hall Regents, 1986
Buku Teks