Castells, Manuel, author
Blackwell, 2000
Buku Teks
edited by Arthur Cotterell
Oxford Oxford University Press , 1980
Buku Teks
edited by Joanne Yates and John van Maanen
Sage, 2000
Buku Teks
Retno Dewiyanti, author
Fakultas Ilmu Komputer Universitas Indonesia, 2018
UI - Tugas Akhir
Arie Widia Apriliani, author
Fakultas Ilmu Komputer Universitas Indonesia, 2018
UI - Tugas Akhir