Open and flexible learning in vocational education and trainingJudith A. Calder, Judith Calder, Ann McCollum · First published 1998Open the Tome
Objectives, competences and learning outcomesReginald F. Melton, Reginald Melton, Judith Calder, Ann McCollum · First published 1997Open the Tome
Learning Effectiveness of Open and Flexible Learning in Vocational Education a Literature Review and Annotated BibliographyMcCollum Ann and Calder Judith · First published 1995Open the Tome
