Analysis of information sources in references of the Wikipedia article "ราชวงศ์ที่เจ็ดแห่งอียิปต์" in Thai language version.
The system of dynasties devised in the third century B.C. [by Manetho] is not without its problems—for example, the Seventh Dynasty is now recognized as being wholly spurious, while several dynasties are known to have ruled concurrently in different parts of Egypt...
