Van der Walt, JohannesSteyn, Faans2010-05-212010-05-212008Van der Walt, J. & Steyn, F. 2008. The validation of language tests. SPIL: Stellenbosch papers in linguistics, 38:191-204 [http://spil.journals.ac.za/pub/article/view/29/63]1027-3417http://hdl.handle.net/10394/3063http://spil.journals.ac.za/pub/article/view/29/63enArticle