Jones-Brown, Delores D., author
Pearson/Prentice Hall, 2004
Buku Teks
Ian K. Pepper, editor
Learning Matters, 2011
Buku Teks
Lundman, Richard J., author
Holty,Rinchart and Winston, 1980
Buku Teks
Paterson, Craig, author
Learning Matters, 2011
Buku Teks
Waddington, P.A.J, author
Learning Matters, 2010
Buku Teks