Hussain, Akmal. "
The Karachi Riots of December 1986: Crisis of State and Civil Society in Pakistan." In
Mirrors of Violence: Communities, Riots and Survivors in South Asia, 186. New Delhi: Oxford University Press, 1990.
Gold, Ted, and Rich Wagner. "
Long Shadows and Virtual Swords." In
Hearings before the Committee on Armed Services, United States Senate, 1216-1229. US Senate, Department of Defense Authorization for Appropriations for Fiscal Year 1991, 1990.
Handloff, Robert E.. Mauritania: A Country Study. Washington, D.C.: Federal Research Division of the Library of Congress, 1990.
Ianni, Francis, and Elizabeth Reuss-Ianni. "
Network Analysis." In
Criminal Intelligence Analysis, 67-84. Loomis, CA: Palmer Enterprises, 1990.