Alan Elbaum and Marina Rustow, "Basic Guide to Zimām Alphanumerals in Geniza Documents" (work in progress)

Goitein's index cards on numerals in geniza documents

Magdalen M. Connolly, “'Coptic' numerals and Genizah studies,” Geniza Fragments (2 June 2021)  

Mutsuo Kawatoko, "On the Use of Coptic Numerals in Egypt in the 16th Century," Orient 28 (1992): 58–74 — see the chart on p. 71.

H. Kazem Zadeh, siyāq chart from “Chiffres siyâk et la comptabilité persane," Revue de monde musulman 30 (1915) : 1–51