English: Narrowing the Gap in the Performance of Schools: A Study of Some Secondary Schools which have made Significant Improvements
Welsh: Cau'r Bwlch ym Mherfformiad Ysgolion: Astudiaeth o rai Ysgolion Uwchradd sydd wedi Gwella'n Sylweddol
Subject: Addysg
Welsh definition: Teitl dogfen, 2002.