Foster, T. ., Willetts, J. ., Lane, M. ., Thomson, P. ., Katuva, J. ., & Hope, R. . (2018). Risk factors associated with rural water supply failure: A 30-year retrospective study of handpumps on the south coast of Kenya. The Science of the Total Environment, 626, 156-164. https://doi.org/10.1016/j.scitotenv.2017.12.302 (Original work published 2018)

Mills, F. ., Willetts, J. ., Petterson, S. ., Mitchell, C. ., & Norman, G. . (2018). Faecal Pathogen Flows and Their Public Health Risks in Urban Environments: A Proposed Approach to Inform Sanitation Planning. International Journal of Environmental Research and Public Health, 15(2). https://doi.org/10.3390/ijerph15020181 (Original work published 2018)

Young, A. ., Besen, E. ., & Willetts, J. . (2018). Expectations for Return to Work After Workplace Injuries: The Relationship Between Estimated Time to Return to Work and Estimate Accuracy. Journal of Occupational Rehabilitation. https://doi.org/10.1007/s10926-018-9754-1 (Original work published 2018)