Rory Padfield, author
Faculty of Engineering, Universitas Indonesia, 2012
Artikel Jurnal
Cramer, Gail L., author
John Wiley & Sons, 1979
Buku Teks
Gullick, J M
Ernest Benn, 1969
Buku Teks
Gullick, J M
Ernest Benn, 1969
Buku Teks
Mohamad Khumaidi
Institute of Asian Studies , 1987
Buku Teks