Coba jelasin Lihat pula dari Angka Etruria dong

Maras, Daniele. "Numbers and reckoning: A whole civilization founded upon divisions." In The Etruscan World, edited by Jean MacIntosh Turfa, 478–91. Abingdon: Routledge, 2013.

Woudhuizen, F. C. "Etruscan numerals in indo-european perspective." Talanta, 20 (1988): 109.