U.S. Embassy, Phnom Penh: Information about the Embassy, the U.S. Information Service (USIS), the U.S. Agency for International Development (USAID), the Defense Attaché Office (USDAO), and Travel Advisory.

U.S. Department of State (Travel.State.Gov): Consular Information Sheet about policies, requirements, transportation, security etc. when Americans travel to Cambodia.

U.S. Census Bureau: U.S. Trade Balance with Cambodia from 1992 - Present.