Wini Permatasari
Fakultas Teknik Universitas Indonesia, 1993
UI - Skripsi (Membership)
Sachs, Ignacy
Cambridge University Press , 1987
Buku Teks
Rubenstein, Harvey M.
New York: John Wiley & Sons, 1978
Buku Teks
edited by Willy Sellekaerts
Macmillan, 1974
Buku Teks
edited by Willy Sellekaerts
Macmillan, 1974
Buku Teks