Hay, William W., author
John Wiley & Sons, 1982
Buku Teks
Bonnett, Clifford F.
Imperial College Press, 1996
Buku Teks
Searles, William H., author
John Wiley & Sons, 1949
Buku Referensi
Pearson, H. M.
London: Odham Press, 1960
Buku Teks
Iman Subarkah
Idea Dharma, 1981
Buku Teks