Black, D.; Schofield, C.; Yarzabal, L. 1992. Final report /Evaluation of the Chagas' disease prevention project.
: (595-21) 480185 Dr Luis Rios  Centro de Tecnología Apropriada  Facultad de Ciencia y Tecnología  Universidad Católica de Paraguay  Asunción, Paraguay  Tél. : (595-21) 913865   Ressources Rojas de Arias, A., 1995, Chagas Disease Control Techniques in Paraguay - Thesis, School of Biological Sciences, Wales University, 262 p.