Irvan A. Bachtiar
Strategi pemasaran deterjen Rinso studi kasus : PT. Unilever Indonesia
1996
 UI - Tesis (Membership)
Gregg, Pauline
A social and economic history of Britain 1760-1950
George G. Harrap, 1952
 Buku Teks
New directions in economic and social history; Volume II
edited by Anne Digby, Charles Feinstein and David Jenkins
Macmillan, 1992
 Buku Teks
Sauvain, Philip
British economic and social history 1700-1870 : a new certificate approach / Philip Sauvain
Stanley Thornes, 1994
 Buku Teks
Atterbury, Paul
A golden adventure : the first 50 years of ULTRAMAR / Paul Atterbury, Julia MacKenzie
Hurtwood Press, 1985
 Buku Teks