1. Adkins, E., Eapen, S., Kaluwile, F., Nair, G., & Modi, V. (2010). Off-grid energy services for the poor: introducing LED lighting in the Millennium Villages Project in Malawi. Energy Policy, 38(2010), 1087–1097.
2. Alstone, P., Lai, P., Mills, E., & Jacobson, A. (2014). High life cycle efficiency explains fast energy payback for improved off-grid lighting systems. Journal of Industrial Ecology. doi: 10.1111/jiec.12117 .
3. Chaosuangaroen, P., & Limmeechokchai, B. (2008). Scenario-based assessment of energy savings in Thailand: a long-range energy alternative planning approach. Thammasat International Journal of Science Technology, 13(2), 11–19.
4. Chirarattananon, S., Chaiwiwatworakul, P., & Kidhen, J. (2011). Development of energy conservation programs for residential and small commercial buildings in Thailand. International Journal of Renewable Energy Research, 1(2011), 17–24.
5. Chua, K. J., & Chou, S. K. (2010). Energy performance of residential buildings in Singapore. Energy, 35(2010), 667–678.