Langhan, D.P. (1994) The textbook as a source of difficulty in teaching and learning: a final report of the Threshold Project. Pretoria: Human Sciences Research Council. http://hdl.handle.net/20.500.11910/16821 http://hdl.handle.net/20.500.11910/16821
If you would like to obtain a copy of this Research Output, please contact the Research Outputs curators at researchoutputs@hsrc.ac.za
Attribution-NonCommercial CC BY-NC
This license lets others remix, adapt, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial, they don’t have to license their derivative works on the same terms.