Johansen, Knud Winstrup
Yield-line formulae for slabs
Cement and Concrete Association, 1972
 Buku Teks SO
Zwillinger, Daniel
CRC standard mathematical tables and formulae
CRC Press, 2012
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The World in figures
editorial information compiled by the Economist
The Economist Newspaper Limited, 1984
 Buku Referensi
Ranciere, Jacques
Figures of history
Polity Press, 2014
 Buku Teks SO
Zeisel, Hans
Say it with figures
Harper & Row , 1968
 Buku Teks SO