1. Carbon 13 NMR of Flavonoids;Agrawal,1989
2. Acyl glucosylated flavonols from Paepalanthus species
3. Phytochemical Methods;Harborne,1998
4. The Flavonoids: Advances in Research;Harborne,1982
5. Multidisciplinary studies on neotropical Eriocaulaceae;Giulietti,2000