Hartzler, H.Richard
Kennikat Press, 1976
Buku Teks
Soerjono Soekanto, author
Alumni, 1975
Buku Teks
Artikel Jurnal
Heribertus S. Hartojo, author
Universitas Indonesia, 2004
UI - Tesis (Membership)
Puri Rahayu Arinta, author
2018
UI - Skripsi (Membership)