Rutter, William A., author
Gilbert Law Summaries, 1973
Buku Teks
Landis, James M.
Jale University Press, 1966
Buku Teks
Starling, Grower
Wadsworth and Cengage Learning, 2011
Buku Teks
Edited by Pat Woodrum
The Haworth Press, 1989
Buku Teks
Afrilas, author
Fakultas Ilmu Administrasi Universitas Indonesia, 2018
UI - Tesis Membership