Kuala Lumpur : Akademi Pengajian Melayu, 2006
Buku Teks
Erik Ramadhanil, author
2010
UI - Skripsi (Open)
Singapore : Institute of Southeast Asian Studies
Majalah, Jurnal, Buletin
Dwiyoga Subarkah, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2010
UI - Skripsi (Open)
Singapore : The SEAMEO Regional English Language Centre
Majalah, Jurnal, Buletin