UNEP (November 2006). "National Biosafety Framework in Burundi"(PDF). National Institute for Environment and Nature Conservation for UNEP Organization. Archived from the original(pdf) on 2008-03-17. Retrieved 13 July 2013.
unep.org
UNEP (November 2006). "National Biosafety Framework in Burundi"(PDF). National Institute for Environment and Nature Conservation for UNEP Organization. Archived from the original(pdf) on 2008-03-17. Retrieved 13 July 2013.