Yu Deuk-gong: Balhaego

The 20 years that we've been out, the 40 years that Professor Song Cheng has been running this year, are significant editions of the revision. The revision added the original reading of the essays, eczemas, and thesis on the second page of the April 28, 1997, newspaper of the Ching Kung Liang, found after the introduction to the Western residence of the U.S. The starting point of the search for lost territory, the return of the historic treasure, was no longer valid, as the following comments were made in our history, decried that the failure to use the 'kings' until the beginning of the year had been met and the result was a re-founded land. He took one step further, actively claiming to put the cause of the death in our history, and in support of this, he organized the first one in our own history. History's perception of the history of the Buddha, and its perception of nature, began with a sense of history in the south that started as a unified god, beginning with the Third World, and later turned into a sense that was found in North Central, which led to a clear epidemiological impact in South Korea. He wrote the book with the idea of restoring the old land of the Great Sea, and the intention of revealing the origins of North America's history. And this research can be measured as having provided a foundation for the future, such as the refinery (.) and the production of research. And especially should he be highly valued for his efforts to organize the cause of the dismissal.

Korean title: 발해고

Korean author: 유득공

Korean publisher: 홍익

ISBN-13: 9791197310614