Schlatter, Richard, author
George Allen & Uwin , 1951
Buku Teks
Ima Rachima Nazir, author
Fakultas Teknik Universitas Indonesia, 2014
UI - Tesis (Membership)
Indira Sjahputri, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2016
UI - Tesis Membership
Megan Richardson, author
Cambridge University Press, 2017
eBooks
Megan Richardson, author
Cambridge University Press, 2017
eBooks