Gray, N. F.
Wiley, 1994
Buku Teks
Gray, Oscar S.
The Bureau of National Affairs, 1973
Buku Teks
edited by Ian R. Falconer
Academic Press, 1993
Buku Teks
James K. Edzwald, editor
McGraw-Hill, 2011
Buku Teks
Cantor, Abigail F., author
CRC Press, Taylor & Francis Group, 2018
Buku Teks