Rani Adriana
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2007
UI - Tesis Membership
Farrelia Khana Khairunnisa
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2023
UI - Tugas Akhir
Kim, Jung-sup
Kyung Hee University Press, 2005
Buku Teks
Jeong, Kelly Y.
Lexington Books, 2011
Buku Teks SO
Institute of International Education Kyung Hee University
Kyung Hee University Press, 2009
Buku Referensi