Khashab, Mouen, author
Slack Incorporated, 2014
Buku Teks
Muir, Robert, author
Henry Frowde, Hodder & Stoughton, 1921
Buku Teks
edited by Kenneth R. Niswander
Litle, Brown, 1983
Buku Teks
edited by Robert Berkow
Merck Sharp & Dohme Research Laboratories, 1987
Buku Teks
Markus, John, 1911-, author
McGraw-Hill, 1971
Buku Referensi