Rujukan Transit Zuhrah

  1. ↑ McClure, Bruce (29 May 2012). "Everything you need to know: Venus transit on June 5–6". EarthSky. Earthsky communications Inc. Dicapai pada 2 June 2012.
  2. ↑ Langford, Peter M. (September 1998). "Transits of Venus". La Société Guernesiaise Astronomy Section web site. Astronomical Society of the Channel Island of Guernsey. Dicapai pada 1 March 2012.
  3. ↑ Shortt, David (22 May 2012). "Some Details About Transits of Venus". Planetary Society web site. The Planetary Society. Dicapai pada 22 May 2012.
  4. ↑ Westfall, John E. (November 2003). "June 8, 2004: The Transit of Venus". Diarkib daripada yang asal pada 8 August 2007. Dicapai pada 25 September 2006.
  5. ↑ Westfall, John E. "June 8, 2004: The Transit of Venus". alpo-astronomy.org. Dicapai pada 8 December 2009.
  6. ↑ Klotz, Irene (6 June 2012). "Venus transit offers opportunity to study planet's atmosphere (+video)". Christian Science Monitor. Dicapai pada 2012-06-06.