Slesser, Henry
Stevens and Sons Limited, 1962
Buku Teks
V. Ramachandran, A.C. Raghuram, R.V. Krishnan, and S.K. Bhaumik
ASM International, 2005
eBooks
Herodotus
Everyman's Library, 1997
Buku Referensi
Viswanathan, Madhu
SAGE Publ., 2005
Buku Teks SO
Eggert, Rudolph J.
Pearson/Prentice Hall, 2005
Buku Teks SO