Jhon Salmar Saragih, author
Universitas Indonesia, 1990
UI - Skripsi (Membership)
Henny Eunike Wirawan, author
Fakultas Psikologi Universitas Indonesia, 1995
UI - Skripsi (Membership)
Winda Hapsari, author
Fakultas Psikologi Universitas Indonesia, 2006
UI - Tesis (Membership)
Sumardi, researcher
Departemen Sosial, 1998
Buku Teks
Artikel Jurnal