"Cynhaliwyd yr arolwg a chasglwyd y canlyniadau gan Uned Addysg Iechyd Ysgolion = Survey hosted and results collated by Schools Health Education Unit".
Profiadau pobl ifanc hoyw yn ysgolion Prydain : yr adroddiad ysgol by Ruth Hunt. Published by Stonewall Cymru in 2009. Publication and catalogue information, links to buy online and reader comments.