Khan, Mohammed Yamin, author
Muhammad Ashraf, 1947
Buku Teks
Norman, Colin, author
Norton, 1981
Buku Teks
Gribbin, John, author
Yale University Press, 1999
Buku Referensi
Oparin, A., author
Foreign Languages Publishing House, 1960
Buku Teks
Nicolson, Iain, author
Horus Editions, 1995
Buku Referensi