Artikel Jurnal
Milio, Nancy, author
Davis, 1983
Buku Teks
Gillian Boulton-Lewis, Maureen Tam, editor
[, Springer], 2012
eBooks
Satrio Raffani Raharjo, author
Fakultas Ilmu Komputer Universitas Indonesia , 2021
UI - Skripsi (Membership)
Blackwell Publishers, 1995
Buku Teks