Splinter, John P.
The complete divorce recovery handbook
Zondervan Publishing House, 1992
 Buku Referensi
Rich, Phil
The healing journey through addiction : your journal for recovery and self-renewal
John Wiley & Sons, 2000
 Buku Teks SO
Sinclair, Ian R.
Practical electronics handbook
Newnes Butterworth-Heinemann, 1994
 Buku Teks
Renewables : a practical handbook
edited by Matt Bonass, Michael Rudd
Globe Law and Business, 2010
 Buku Teks
Handbook of practical program evaluation
edited by Joseph S. Wholey
Jossey-Bass Publishers, 1994
 Buku Teks