Daniel, Peter, author
Oliver & Boyd, 1993
Buku Teks
Wheeler, James O., author
John Wiley & Sons, 1986
Buku Teks
Getis, Arthur, author
McGraw-Hill, 2000
Buku Teks
Hall, Tim, 1968-, author
Routledge, 2018
Buku Teks
Getis, Arthur, author
McGraw-Hill Higher Education, 2009
Buku Teks