Scheaffer, Richard L.
Brooks/Cole Cengage Learning, 2012
Buku Teks SO
Chaudhuri, Arijit
Chapman and Hall/CRC, 2005
Buku Teks SO
Cassel, Claes-Magnus
John Wiley & Sons, 1977
Buku Teks SO
Thompson, Steven K.
John Wiley & Sons, 2012
Buku Teks SO
Wiley-Interscience, 1969
Buku Teks SO