Vaillancourt, Pauline M., author
Bowker, 1980
Buku Teks
Universitas Indonesia, 1989
Buku Referensi
Nair, Chenicheri Sid, editor
Chandos, 2014
eBooks
Bell, Simon, author
Routledge , 1996
Buku Teks
Computer Science Center University of Indonesia, 1989
Buku Referensi