1
Yazar: Aynsley, Jeremy.
Baskı/Yayın Bilgisi 2009
Full text available from Arts & Humanities Database
Full text available from Career & Technical Education Database
Elektronik Ekitap
2
Yazar: Darley, Gillian.
Baskı/Yayın Bilgisi 2003
Full text available from Engineering Database
Elektronik Ekitap