David McKay Company, Inc., 1960
Buku Teks
Gilbert, Martin, author
Routledge, 1994
Buku Teks
Steinberg, David J. (David Joel), author
Solidaridad Publishing House, 1967
Buku Teks
Buchanan, A. Russell, author
Harper & Row, [c1964]
Buku Teks
Raghavan, Srinath, author
Basic Books, a member of the Perseus Books Group, 2016
Buku Teks