Harahap, Dinasti Brian, examiner
Fakultas Hukum Universitas Indonesia, 2009
UI - Skripsi Open
Swan, Michael
Beacon Press, 1958
Buku Teks
Universitas Indonesia, 1985
UI - Skripsi Membership
Tian Sakti Marantika
Fakultas Psikologi Universitas Indonesia, 2022
UI - Tesis Membership
De Sturler, Jacques Eduard
LPPN/INDES-LIPI, 1997
Buku Teks