ان‌جی‌سی ۴۰ (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "ان‌جی‌سی ۴۰" in Persian language version.

refsWebsite

Global rank Persian rank

1,342^nd place

1,126^th place

18^th place

50^th place

harvard.edu (Global: 18^th place; Persian: 50^th place)

chandra.harvard.edu

"Chandra X-Ray Observatory". Retrieved 2007-06-05.

u-strasbg.fr (Global: 1,342^nd place; Persian: 1,126^th place)

simbad.u-strasbg.fr

نتایج ان‌جی‌سی ۴ http://simbad.u-strasbg.fr/Simbad. Retrieved 2006–12–22. {{cite web}}: Check date values in: |accessdate= (help); Missing or empty |title= (help)