Knowles, Caroline
Sage, 2003
Buku Teks
Manly, Bryan F. J
Cambridge University Press, 1992
eBooks
Walizer, Michael H.
Harper & Row, 1988
Buku Teks
Singer, Judith A.
Oxford University Press, 2003
Buku Teks
Avisha Ayu Namira
Fakultas Kedokteran Gigi Universitas Indonesia, 2021
UI - Skripsi Membership