Carrithers, Wallace M.
C.E. Merrill Books, 1967
Buku Teks
Greenwood, William T., author
South-Western, 1969
Buku Teks
Susskind, Richard E.
Clarendon Press , 1989
Buku Teks
Nirmalasari Ajeng P., author
Fakultas Hukum Universitas Indonesia, 2012
UI - Skripsi (Open)
Fakultas Ilmu Komputer Universitas Indonesia, 2014
UI - Tugas Akhir