Siagian, Eva Grace Rouli, author
2002
UI - Skripsi (Membership)
Sukaria, author
1995
UI - Skripsi (Membership)
Laili Irawati, author
Fakultas Psikologi Universitas Indonesia, 2005
UI - Skripsi Membership
Butarbutar, Tiodora Br., author
Fakultas Psikologi Universitas Indonesia, 2004
UI - Skripsi (Membership)
Dwi Dyah A, author
1999
UI - Skripsi (Membership)