Winkel, Hendrik Willem Te, author
Drukkerij Luctor et Emergo, 1950
Buku Teks
Angus and Robertson, 1949
Buku Teks
Chowdhuri, R. N.
Martinus Nijhoff, 1955
Buku Teks
Saragi, Duma Natalia Damayanti, author
2012
UI - Tesis (Open)
Hesti Dianingrum, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2011
UI - Skripsi (Open)