1. Adler, J. (2002). Teaching mathematics in multilingual classrooms. Dordrecht, The Netherlands: Springer.
2. Ascher, M. (2002). Mathematics elsewhere: An exploration of ideas across cultures. Natural History, 112(7), 2–9.
3. Baing, S. (Ed.). (1998). National curriculum guidelines for the Diploma in Teaching (Primary). Port Moresby, PNG: Staff Development and Training Division, NDOE, Papua New Guinea.
4. Baker, C. (2006a). Cognitive theories of bilingualism and the curriculum. In C. Baker (Ed.), Foundations of bilingual education and bilingualism (4th ed.) (pp. 167–186). Clevedon, England: Multilingual Matters.
5. Baker, C. (Ed.) (2006b). Foundations of bilingual education and bilingualism (4th ed.). Clevedon, England: Multilingual Matters.