Unwin, Tim, author
Longman Scientific & Technical, 1992
Buku Teks
by Arthur Getis ... [and others]
McGraw-Hill, 2011
Buku Teks
Kendall, Henry M., author
Harcourt, Brace, 1958
Buku Teks
by Arthur Getis ... [and others]
McGraw-Hill, 2005
Buku Teks
Briggs, David J., author
Longman Scientific & Technical, 1994
Buku Teks