History skills : a student's handbook
edited by Mary Abbott
Routledge, 1996
 Buku Teks
Rogers, Jenny
Coaching skills: a handbook
Open University Press, 2004
 Buku Teks
Charlton, Ruth
The Mediator's handbook: Skills and strategies for practitioners
Lawbook, 2004
 Buku Teks
Wikrama Iryans Abidin
Handbook on media relations and communication skills
General Secretariat of the House of Representatives of the Republic of Indonesia and United Nations Development Programme, 2009
 Buku Referensi
Williams, Kate
Study skills / Kate Williams
MacMillan Press , 1989
 Buku Teks