edited by Christo El Morr
Information Science Reference, 2014
Buku Teks SO
Wickramasinghe, Nilmini, editor
Springer, 2012
eBooks
Jeni Achmat Rinaldi
2016
UI - Tesis Membership
Agung Kurniawan
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2018
UI - Skripsi Membership
Tom, Paul T.
HarperCollins Publishers, 1991
Buku Teks