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FORM 10-K
EX-21
CERTIFICATION
CERTIFICATION
Accounts and Other Receivables
12 Months Ended
Dec. 31, 2019
Accounts and Other Receivables
3. Accounts and Other Receivables
December 31,
2019
December 31,
2018
Trade accounts receivable
$
39,398
$
31,567
Allowance for doubtful accounts
(21,262
)
(7,014
)
$
18,136
$
24,553