1. Anthony, S., Tan, W. H. L., & Subramaniam, R. (2008). A virtual reality system for learning science in a science center. In M. Khosrow-Pour (Ed.), Encyclopedia of information science and technology (pp. 3145–3156). Hershey, PA: IGI Global.
2. Bell, P., Lewenstein, B., Shouse, A. W., & Feder, M. A. (Eds.). (2009). Learning science in informal environments: People, places, and pursuits (pp. 9–26). Washington, DC: National Academy Press.
3. Bird, M., Chua, S., Fifield, L. K., Teh, T. S., & Lai, J. (2004). Evolution of the Sungei Buloh–Kranji mangrove coast, Singapore. Applied Geography, 24(3), 181–198.
4. Caleon, I. S., & Subramaniam, R. (2005). The impact of a cryogenics-based enrichment programme on attitude towards science and the learning of science concepts. International Journal of Science Education, 27(6), 679–704, 1.33.
5. Caleon, I. S., & Subramaniam, R. (2007). Augmenting learning in an out-of-school context: The cognitive and affective impact of two cryogenics-based enrichment programmes on upper primary students. Research in Science Education, 37(3), 333–351, 1.57.