Who's who in contemporary women's writing
edited by Jane Eldridge Miller
Routledge, 2001
 Buku Referensi
Gordon, Sheldon P.
Contemporary statistics : a computer approach
McGraw-Hill, 1994
 Buku Teks
Lathrop, Thomas G.
Geometry : a contemporary approach
Wadsworth, 1967
 Buku Teks
Miller, G. Tyler (George Tyler), 1931-
Chemistry : a contemporary approach
Wadsworth, 1991
 Buku Teks
Kuratko, Donald F.
Entrepreneurship : a contemporary approach
Harcourt College Publishers, 2001
 Buku Teks