1. Al-Kindi (ca. 850) The medical formulary or Aqrabadhin of Al-Kindi. Translated with a study of its Materia Medica by Martin Levey, 1966. University of Wisconsin Press, Madison, 235 pp
2. Berk L, De Man RA, Schalm SW, Labadie RP, Heijtink RA (1991) Beneficial effects of Phyllanthus amarus for chronic hepatitis B, not confirmed. J Hepatol 12: 405–406
3. Dhir H, Roy AK, Sharma A (1993) Relative efficiency of Phyllanthus emblica fruit extract and ascorbic acid in modifying lead and aluminum-induced sister chromatid exchanges in mouse bone marrow. Environ Mol Mutagen 21: 229–236
4. Doshi JC, Vaidya AB, Antarkar DS, Deolalikar R, Antani DH (1994) A two-stage clinical trial of Phyllanthus amarus in hepatitis B carriers; failure to eradicate the surface antigen. Indian J Gastroenterol 13: 7–8
5. Everett TH (ed) (1981) New York botanical garden illustrated encyclopedia of horticulture, vol 8. New York Botanical Garden, New York, pp 2616–2617