Roth, Veronica, author
Mizan Media Utama, 2015
Buku Teks
edited by Brendan Taylor, Nicholas Farrelly, Sheryn Lee
Institute of South East Asia Studies, 2012
eBooks
Shina Ratna Yunita, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2017
UI - Makalah dan Kertas Kerja
Thelen, David P.
Little, Brown and Company, 1976
Buku Teks
Sajida Alvi, author
2016
UI - Makalah dan Kertas Kerja