Hernita Wahyuni, author
Universitas Indonesia, 2007
UI - Tesis (Membership)
Greenberg, Jerald, author
Pearson Education, 2003
Buku Teks
Ananto Basuki
PAU-EK-UI, 1990
Buku Teks
Ago Dirhamsyah, author
2004
UI - Skripsi (Membership)
Bunga, author
2019
UI - Skripsi (Membership)