?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Loo&rft.aufirst=Kooi+Hong&rft.au=Loo%2C+Kooi+Hong&rft.date=September+1997&rft.tpages=61&rft.degree=Masters&rft.title=HEADS+OF+DEPARTMENT'S+PERCEPTIONS+OF+THEIR+NEED+FOR+PROFESSIONAL+DEVELOPMENT+IN+SOME+MALAYSIAN+SECONDARY+SCHOOLS+IN+TAIPING%2C+PERAK.&rft.inst=University+of+Bristol