Gass, Susan M.
Routledge, 2017
Buku Teks
Amalia Susilowati
1985
UI - Skripsi (Membership)
Howes, Mary B.
Academic Press, 2014
eBooks
Anne Ivana Samanhudi
Fakultas Psikologi Universitas Indonesia, 2013
UI - Skripsi (Membership)
Fakultas Psikologi Universitas Indonesia, 1982
UI - Skripsi (Membership)