Ray, James Arthur
Harmonic wealth: the secret of attracting the life you want = kekayaan harmonis rahasia menciptakan kehidupan yang anda inginkan
Gramedia Pustaka Utama, 2009
 Buku Teks
Gawain, Shakti
Creative visualization ; use the power of your imaginatin to create what you want in your life
Whatever Publisher, 2002
 Buku Teks
If you want to study the United States
 Buku Teks
If you want to study in the United States
editor, Rosalie Targonski
United States Information Agency, Office of Academic Programs, [date of publication not identified]
 Buku Teks
Lancaster, F. Wilfrid
If you want to evaluate your library
Uninersity of Illinois, 1993
 Buku Teks