Balassa, Bela A., author
Harvester Wheatsheaf, 1989
Buku Teks
Advensius Cristian, author
Universitas Indonesia, 2017
UI - Tesis (Membership)
Hasna Alifa, author
2019
UI - Skripsi (Membership)
Chacholiades, Miltiades, author
McGraw-Hill, 1978
Buku Teks
Roehim Nuranas, author
2014
UI - Tesis (Membership)