Millman, Jacob
McGraw-Hill, 1987
Buku Teks
e Home Entertainment, Inc, 2011
Buku Referensi
United Nations Departemen of Public Information, 1990
Buku Teks
Edited, Dorojatun Kuntjoro-Jakti; Keiji Omura
Institute of Developing Economies, 1995
Buku Teks
Brown, A.J.
George Allen and Unwin, 1959
Buku Teks