Underhill, Nic, author
Cambridge University Press, 1993
Buku Teks
Davies, Alan, 1931 February 17-, author
Basil Blackwell, 1990
Buku Teks
Hughes, Arthur
Cambridge University Press, 1994
Buku Teks
Gifari Ramadhan, author
Fakultas Teknik Universitas Indonesia, 2019
UI - Skripsi Membership
Christopher Titford edited
Gunter Narr, 1985
Buku Teks