The CIA’s National Intelligence Daily for Friday, 15 June describes the latest developments in Romania, Eastern Europe, Liberia, South Korea, Central America, Bulgaria and USSR.

The CIA’s National Intelligence Daily for 21 July 1990 describes the latest developments in Iraq, Liberia, Koreas, the Soviet Union, Romania, Bulgaria and Panama.

The CIA’s National Intelligence Daily for 27 January 1990 describes the latest developments in the Soviet Union, Germanys, Panama, Romania, Bulgaria, Poland and South Korea.

Record of Bulgarian Ambassador to North Korea, Misho Nikolov's farewell visit with North Korean Leader Kim Il Sung, including conversation on North Korea's interest in South Korean Presidential candidate Kim Dae-jung.

Bulgarian Deputy Foreign Minister, Maria Zaharieva meets with North Korean Ambassador, Ha Dong-yun to discuss North Korea's concerns regarding South Korean involvement in international venues to be hosted in Bulgaria.

Report by Bulgarian Ambassador to Pyongyang, Misho Nikolov, outlining Pyongyang's requests to discontinue all political recognition, in both imagery and name, of South Korea.

Report on North Korea's international standing, economic situation, and political relations with Soviet Russia in comparison to South Korea, following the 1988 Seoul Olympics.

The Bulgarian Embassy in North Korea urges the DPRK to join the Non-Proliferation Treaty. North Korea won't commit, citing presence of US nuclear weapons in South Korea