Trueman، N. A. (1965). "The phosphate, volcanic and carbonate rocks of Christmas Island (Indian Ocean)". Journal of the Geological Society of Australia. ج. 12 ع. 2: 261. Bibcode:1965AuJES..12..261T. DOI:10.1080/00167616508728596.
Nordberg، Gunnar F. (2010). "Biomarkers of exposure, effects and susceptibility in humans and their application in studies of interactions among metals in China". Toxicology Letters. ج. 192 ع. 1: 45–9. DOI:10.1016/j.toxlet.2009.06.859. PMID:19540908.
harvard.edu
ui.adsabs.harvard.edu
Trueman، N. A. (1965). "The phosphate, volcanic and carbonate rocks of Christmas Island (Indian Ocean)". Journal of the Geological Society of Australia. ج. 12 ع. 2: 261. Bibcode:1965AuJES..12..261T. DOI:10.1080/00167616508728596.
nih.gov
pubmed.ncbi.nlm.nih.gov
Nordberg، Gunnar F. (2010). "Biomarkers of exposure, effects and susceptibility in humans and their application in studies of interactions among metals in China". Toxicology Letters. ج. 192 ع. 1: 45–9. DOI:10.1016/j.toxlet.2009.06.859. PMID:19540908.