Woodbury, David O.
New York: Harcoust, Brace, 1958
Buku Teks
Pollard, Dave, author
Haynes Publishing, 1993
Buku Referensi
Springer cham, 2019
eBooks
Fuad Gary Rahadian, author
Fakultas Teknik Universitas Indonesia, 2011
UI - Skripsi (Open)
Aldila Harisanto, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2010
UI - Tesis (Open)