by Dan Lattimore [and others]
McGraw-Hill, 2013
Buku Teks
McKercher, Asa, author
Oxford University Press, 2016
eBooks
Wilcox, Dennis L., author
Pearson Education, 2003
Buku Teks
Angle Caroline, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2023
UI - Skripsi (Membership)
Moore, Wilbert E. (Wilbert Ellis), author
Cornell University Press , 1951
Buku Teks