Aczel, Amir D., author
Irwin, 1995
Buku Teks
Navidi, William Cyrus
NY McGraw-Hill Education, 2014
Buku Teks
Keyfitz, Nathan, author
John Wiley & Sons, 1977
Buku Teks
Mendenhall, William, author
Wadsworth , 1967
Buku Teks
Mendenhall, William, author
Wadsworth, 1969
Buku Teks