Hopson, Barrie
12 langkah menuju sukses melalui pelayanan bermutu: program lengkap untuk memperoleh dan mempertahankan pelanggan / Barrie Hopson, Mike Scally; alih bahasa, Purborini Sulistyo, Maharani Hardjoko; editor, Danuyasa Asihwardji
Arcan, 1997
 Buku Teks
Griffith, Peter
English at the core : dialogue and power in English teaching / Peter Griffith
Open University Press, 1991
 Buku Teks
Kellett, Mary
How to develop children as researchers: a step-by-step guide to teaching the research process
Paul Chapman Publishing, 2005
 Buku Teks
Andrew J. Milson
International perspectives on teaching and learning with GIS in secondary schools
Springer, 2012
 eBooks
Ireson, Gren
Reflective reader : secondary science
Learning Matters, 2006
 Buku Teks