Beckmann, D. e Kurvers, J. (2009) «Growing Roots and Wings: A Case Study on English Literacy in Namibia», LESLLA Symposium Proceedings, 4(1), pagg. 201–212. Disponibile su: https://lesllasp.journals.publicknowledgeproject.org/index.php/lesllasp/article/view/6078 (Consultato: 24 maggio 2024).