Buku Teks
Kish, Leslie, author
John Wiley & Sons, 1965
Buku Teks
Scheaffer, Richard L., author
Brooks/Cole Cengage Learning, 2012
Buku Teks
Cochran, William G., author
Wiley, 1953
Buku Teks
Cochran, William G., author
John Wiley & Sons, 1953
Buku Teks