Swetz & Zeitlinger, 1989
Buku Teks
Woodside, Arch G., author
Emerald, 2017
eBooks
Sudirgo Wibowo, author
1977
UI - Disertasi (Membership)
Cohen, Ronald Jay, author
Mayfield Publishing Company, 1999
Buku Teks
Universitas Indonesia, 2004
UI - Tugas Akhir