As observed by Richman (p.396). Hans de Vreught (1994). "sci.math FAQ: Why is 0.9999… = 1?". Diarsipkan dari asli tanggal 2007-09-29. Diakses tanggal 2006-06-29.
As observed by Richman (p.396). Hans de Vreught (1994). "sci.math FAQ: Why is 0.9999… = 1?". Diarsipkan dari asli tanggal 2007-09-29. Diakses tanggal 2006-06-29.