Artikel Jurnal
Tindall, Judith A., author
Routledge, 2009
Buku Teks
Tindall, Judith A.
Routledge, 2008
Multimedia
Putri Hanny Kurniawan, author
Fakultas Psikologi Universitas Indonesia, 2023
UI - Skripsi (Membership)
Ender, Steven C., author
Jossey-Bass Pub., 2000
Buku Referensi