The natural calculator : using the natural processes of the mind for mental calculation/

Eitemau Tebyg

• Teacher's guide : the cosmic calculator (books 1,2 and 3)/
  gan: Kenneth Williams, et al.
  Cyhoeddwyd: (2002)
• The cosmic calculator : answer book (a vedic mathematics course for schools book 1, 2 and 3)/
  gan: Kenneth Williams, et al.
  Cyhoeddwyd: (2005)
• How to calculate quickly: The art of calculation
  gan: Sticker, Henry
  Cyhoeddwyd: (1955)
• The Natural Calculator/
  gan: Williams, K.R
  Cyhoeddwyd: (2003)
• The cosmic calculator : a vedic mathematics course for schools (book 1)/
  gan: Kenneth Williams, et al.
  Cyhoeddwyd: (2002)