All About: Rahu (North Node)
All About: Ketu (South Node)
Wikipedia, the free encyclopedia, 2014. List of Solar System objects by size. ONLINE] Available at: http://en.wikipedia.org/wiki/List_of_Solar_System_objects_by_size. Accessed 05 October 2014].
Dharmavida, 2014. Article: Grahas or Planets in Vedic Astrology. [ONLINE] Available at: http://www.dharmavida.org/index.php/en/vidya-en/vedic-astrology/103-article-the-graha-or-planets-in-vedic-astrology. [Accessed 05 December 2014].