இட்டெர்பியம் (Tamil Wikipedia)

Analysis of information sources in references of the Wikipedia article "இட்டெர்பியம்" in Tamil language version.

refsWebsite

Global rank Tamil rank

167^th place

128^th place

1webelements.com

3,527^th place

1,602^nd place

usgs.gov (Global: 167^th place; Tamil: 128^th place)

minerals.usgs.gov

James B. Hedrick. "Rare-Earth Metals". USGS. http://minerals.usgs.gov/minerals/pubs/commodity/rare_earths/740798.pdf. பார்த்த நாள்: 2009-06-06.

webelements.com (Global: 3,527^th place; Tamil: 1,602^nd place)

"Chemical reactions of Ytterbium". Webelements. Retrieved 2009-06-06.