Graffham, A.; Nenguwo, N.; Yuba, T.; Chakanyuka, K.; Mharapara, O.; Mathooko, F.; Mlambo, B. Improving quality assurance systems for fresh fruits and vegetables produced by peri-urban resource poor farmers in Zimbabwe. Project Evaluation Report. (2003)
Punton, M.; Welle, K. Straws-in-the-wind, Hoops and Smoking Guns: What can Process Tracing Offer to Impact Evaluation? Institute of Development Studies (IDS), Brighton, UK (2015) 8 pp. (CDI Practice Paper 10)
CTA. 2003. Un rapport finlandais explique pourquoi les pays ACP seront perdants avec la réforme du sucre de l'UE. Décembre 2003. CTA, Wageningen, The Netherlands.