Lecler S.J., Joseph
Two sovereignties : a study of the relationship between church and state / byJ oseph Lecler S.J.
Burns Oates & Washbourne, 1952
 Buku Teks
Corley, Robert Neil
The legal environment of business / Robert N. Corley, O. Lee Reed
McGraw-Hill, 1987
 Buku Teks
Reed-Hill, Robert E
Physical metallurgy principles / by Robert E. Reed-Hill, Reza Abbaschian
PWS Publishing Company, 1991
 Buku Teks
Religion in early Australia : the problem of church and state
edited by Jean Woolmington
Cassell Australia, 1976
 Buku Teks
Corley, Robert Neil
The legal environmet of business / Robert N.Corley, Robert I. blak, O. Lee Reed
McGraw-Hill , 1981
 Buku Teks