Dina Dwiartanti, author
Fakultas Psikologi Universitas Indonesia, 2009
UI - Tesis (Open)
Richards, Jack C., author
Cambridge University Press, 2017
Buku Teks
edited by Robert Keith Johnson
Cambridge University Press, 1994
Buku Teks
Tarigan, Henry Guntur, author
Angkasa, 1993
Buku Teks
Aan Nurhasanah, author
Fakultas Kesehatan Masyarakat Universitas Indonesia, 2011
UI - Tesis (Open)