Book
Clayton, S., & Myers, G. (2015). Conservation psychology: understanding and promoting human care for nature / Susan Clayton and Gene Myers. (Second edition.). WILEY-Blackwell.
Ministry of the Environment and Water Resources & Singapore. National Environment Agency. (2019). Zero Waste Masterplan Singapore. Ministry of the Environment and Water Resources. https://www.towardszerowaste.gov.sg/images/zero-waste-masterplan.pdf
Tan, P., & Lye, L. (2013). RECYCLING IN SINGAPORE THE SINGAPORE MODEL: STRATEGIES AND WAYS TO IMPROVE. In Sustainability Matters (pp. 75–100). World Scientific Publishing Co. Pte. Ltd. https://doi.org/10.1142/9789814546829_0003
Report
Singapore Environment Council. (2018, August). Consumer Plastic & Plastic Resource Ecosystem in Singapore. https://sec.org.sg/wp-content/uploads/2019/07/DT_PlasticResourceResearch_28Aug2018-FINAL_with-Addendum-19.pdf
Journal
Ajzen, I. (1991). The theory of planned behavior. Organizational Behavior and Human Decision Processes, 50(2), 179–211. https://doi.org/10.1016/0749-5978(91)90020-t
McCarty, J. A., & Shrum, L. J. (1994). The recycling of solid wastes: Personal values, value orientations, and attitudes about recycling as antecedents of recycling behavior. Journal of Business Research, 30(1), 53–62. https://doi.org/10.1016/0148-2963(94)90068-x
Website
National Environment Agency. (2020, February 21). Waste Management. https://www.nea.gov.sg/our-services/waste-management/overview