1. Guide méthodologique d’enquêtes sur terrain;ACF-Action Against Hunger,2012
2. Waste scavenging in third world cities: a case study in Ilorin, Nigeria;Adeyemi;The Environmentalist,2001
3. A survey of operational characteristics, socio-economic and health effects of scavenging activity in Lagos, Nigeria;Afon;Waste Management & Research,2012
4. Etude sur la situation de l'emploi en Côte d'Ivoire en 2012;AGEPE-Agence d'Etudes et de Promotion de l'Emploi,2013
5. Partnerships for solid waste management in developing countries: linking theories to realities;Ahmed;Habitat International,2004