1. Aikman, Sheila (2001): ‘Literacies, Languages and Developments in Peruvian Amazonia’, in Street, Brian V. (ed.), Literacy and Development: Ethnographic Perspectives. London: Routledge, pp.103-120.
2. Ary, Donald; Jacobs, Lucy Cheser & Sorensen, Chris (2010): Introduction to Research in Education. 8th edition, Belmont, California: Wadsworth.
3. Betts, Julia (2003): ‘Literacies and Livelihood Strategies: Experience from Usulután, El Salvador’. International Journal of Educational Development, Vol.23, No.3, pp.291-298.
4. Bledsoe, Caroline H. & Robey, Kenneth M. (1993): ‘Arabic Literacy and Secrecy among the Mende of Sierra Leone’, in Street, Brian (ed.), Cross-cultural Approaches to Literacy. Cambridge: Cambridge University Press, pp.110-134.
5. Brannen, Julia (2005): ‘Mixing Methods: The Entry of Qualitative and Quantitative Approaches into the Research Process’. International Journal of Social Research Methodology, Vol.8, No.3, pp.173-184.