Munk, Matityahu Hacohen. Three Geometric Problems in the Bible and Talmud. Sinai51 (1962), 218-227 (dalam bahasa Ibrani); Munk, Matityahu Hacohen. The Halachic Way in Solving Special Geometric Problems. Hadarom27 (1968), 115-133 (dalam bahasa Ibrani). Dikutip dalam: Tsaban, Boaz; Garber, David. On the Rabbinical Approximation of Pi, Historia Mathematica 25 (1998), pp. 75-84. [dalam bahasa Inggris]
khouse.org
Jawaban ini ditemukan juga oleh Shlomo Edward G. Belaga, selain dalam halaman Boaz Tsaban "Rabbinical Math" serta dilaporkan dalam buku Grant Jeffrey "The Handwriting of God", Frontier Research Publications, Toronto Ontario, 1997.
oxfordbiblicalstudies.com
"Weights and Measures", Oxford Biblical Studies Online, Oxford: Oxford University Press, diakses tanggal 15 Januari 2017.