1. Alsagoff, L., & Ho, C. L. (1998). The grammar of Singapore English. In J. Foley et al. (Eds.), English in new cultural contexts: Reflections from Singapore (pp. 127–151). Singapore Institute of Management/Oxford University Press.
2. Bao, Z. (1995). Already in Singapore English. World Englishes, 14, 181–188.
3. Baskaran, L. (2004). Malaysian English: Morphology and syntax. In B. Kortmann, K. Burridge, R. Mesthrie, E. W. Schneider, & C. Upton (Eds.), A handbook of varieties of English. Volume 2: Morphology and syntax (pp. 1073–1085). Mouton de Gruyter.
4. Cane, G. (1994). The English language in Brunei Darussalam. World Englishes, 13, 351–360.
5. Carter, R., & McCarthy, M. (2006). Cambridge grammar of English: A comprehensive guide. Cambridge University Press.