Banta et al., 1984. International Rice Research Institute, 631 p. Document reference Banta, S. ; Mendoza, C. V., 1984. Organic matter and rice. International Rice Research Institute, 631 p.Web http://books.google.fr/books?id=7eCN_04o2uECCitation key Banta et al., 1984Datasheets Calotropis (Calotropis procera)
