Streetman, Ben G.
Prentice-Hall, 1980
Buku Teks SO
Streetman, Ben G.
Pearson, 2015
Buku Teks SO
Bandyopadhyay, Supriyo
Springer, 2012
eBooks
Lenk, John D.
Prentice-Hall, 1971
Buku Referensi
Genn, Robert C.
Parker Publishing Company, 1981
Buku Referensi