Pirone, Cary; Quirke, J. Martin E.; Priestap, Horacio A.; Lee, David W. (2009). "Animal Pigment Bilirubin Discovered in Plants". Journal of the American Chemical Society. Quyển 131 số 8. tr. 2830. doi:10.1021/ja809065g. PMC2880647. PMID19206232.
Pirone, Cary; Quirke, J. Martin E.; Priestap, Horacio A.; Lee, David W. (2009). "Animal Pigment Bilirubin Discovered in Plants". Journal of the American Chemical Society. Quyển 131 số 8. tr. 2830. doi:10.1021/ja809065g. PMC2880647. PMID19206232.
pubmed.ncbi.nlm.nih.gov
Pirone, Cary; Quirke, J. Martin E.; Priestap, Horacio A.; Lee, David W. (2009). "Animal Pigment Bilirubin Discovered in Plants". Journal of the American Chemical Society. Quyển 131 số 8. tr. 2830. doi:10.1021/ja809065g. PMC2880647. PMID19206232.