edited by Ken Plummer
Routledge, 1992
Buku Teks
Natalie Djuaher
Fakultas Psikologi Universitas Indonesia, 2003
UI - Skripsi (Membership)
editors, George E. Haggerty, Molly McGarry
Wiley Balckwell, 2015
Buku Teks
Artikel Jurnal
Routledge, 1992
Buku Teks