Clara Gunawan, author
2016
UI - Skripsi Membership
RR Mindo Poetri Permata, author
2014
UI - Skripsi (Membership)
Santrock, John W., author
Wm. C. Brown Publisher, 1984
Buku Teks
Berk, Laura E.
Pearson, 2012
Buku Teks
Billman, Jean, author
Allyn and Bacon, 1997
Buku Teks