Vila-Guilera J, Dasgupta R, Parikh P, Ciric L, Lakhanpaul M. Barriers to the delivery and uptake of Water Sanitation and Hygiene (WASH) promotion and infant diarrhoea prevention services: a case-study in rural tribal Banswara, Rajasthan. Indian Pediatr. 2022 Jan 15;59(1):38-42.
Edwards PET, Parsons GR, Myers KH. The economic value of viewing migratory shorebirds on the Delaware Bay: an application of the single-site travel cost model using on-site data. Hum Dimens Wildl. 2011;16(6):435-44. doi: 10.1080/10871209.2011.608180