O`Brien, Dominic, author
Ufuk Press, 2011
Buku Teks
Elly Irawati, author
1981
UI - Skripsi (Membership)
Fakultas Psikologi Universitas Indonesia, 1982
UI - Skripsi (Membership)
Bambang Hendro S., author
Universitas Indonesia, 1996
UI - Tesis (Membership)
Lorayne, Harry
Golden Books Centre SDN. BDN, 1992
Buku Teks