Attached files
file | filename |
---|---|
EX-32 - EXHIBIT 32 - Graham Holdings Co | a2021q110-qex32.htm |
EX-31.2 - EXHIBIT 31.2 - Graham Holdings Co | a2021q110-qex312.htm |
EX-31.1 - EXHIBIT 31.1 - Graham Holdings Co | a2021q110-qex311.htm |
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