West, 2011
Buku Teks
Carr, C. J. (Chris J.), author
Blacstone Press , 1989
Buku Teks
editors, Marcus D. Flather, Deepak L. Bhatt, Tobias Geisler
Blackwell , 2013
eBooks
Underhill, H.C. (Harry Clay), 1858-1918, author
Bobbs-Merrill , [19--?]
Buku Klasik
Stern, Scott D.C., author
McGraw-Hill , 2015
Buku Teks