Sweezy, Paul M. (Paul Marlor), 1910-2004
Socialism
McGraw-Hill, 1949
 Buku Teks
Komang Agung Irianto
A beneficial bipolar hemiarthroplasty on a centenarian in one developing country
University of Indonesia. Faculty of Medicine, 2021
 Artikel Jurnal
Krich, John
Why is this country dancing? : a One man Samba to the beat of Brasil / John Krich
Simon & Schuster , 1993
 Buku Teks SO
Webb, James
A Country such as this
Bantam Books, 1985
 Buku Teks
Von Mises, Ludwig, 1881-1973
Socialism an economic
Bradford and Dickens, 1953
 Buku Teks