Aris Subagio
2019
UI - Tesis Membership
Egan, John, 1952-
Thomson Learning, 2007
Buku Teks SO
Blythe, Jim
Prentice-Hall, 2000
Buku Teks SO
Eagle, Lynne
Taylor & Francis Group, 2015
Buku Teks SO
A. Adji Watono
Gramedia Pustaka Utama, 2011
Buku Teks SO