Berry, Ralph, author
London : ROUTLEDGE, 1994,
Buku Referensi
Berry, Ralph, author
Routledge, 1994
Buku Teks
Sandra A. Graham-Bermann, Alytia A. Levendosky, editor
American Psychological Association, 2011
Buku Teks
United Nations, 1999
Buku Teks
Arita Anandari Buntara, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2021
UI - Skripsi (Membership)