1. Toetsing Turks en Arabisch aan het einde van het basisonderwijs;Aarssen,1992
2. Summative assessment of ethnic group language proficiency;Aarssen,1993
3. Immigrant children learning Dutch. Socio-linguistic and psycho-linguistic aspects of second language acquisition;Appel,1984
4. Comment on Willig's “A meta-analysis of selected studies in he effectiveness of bilingual education”;Baker;Review of Educational Research,1987
5. Federal policy and the effectiveness of bilingual education;Baker,1983