Australia :The Australia Government Publishing Service for Commonwealth Departmen of Education
Majalah, Jurnal, Buletin
Niko Fajar Setiawan, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2011
UI - Skripsi (Open)
Peking : Foreign Languages Press
Majalah, Jurnal, Buletin
Genewa : Departemen of Communication and Public Informasi of the ILO, 2006,
Majalah, Jurnal, Buletin
Asia Publisher, Seoul, Korea : Asia Publishers
Majalah, Jurnal, Buletin