Zotter, Franz, author
Springer Nature, 2019
eBooks
Officer, C.B.
McGraw-Hill Book, 1958
Buku Teks
Morse, Philip M., author
McGraw-Hill, 1948
Buku Teks
Mak, Willem
Martinus Nijhoff, 1952
Buku Teks
Naldo, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2012
UI - Tesis (Open)