Quarterly report pursuant to Section 13 or 15(d)

ACCOUNTS RECEIVABLE (Details)

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ACCOUNTS RECEIVABLE (Details) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Receivables [Abstract]    
Accounts receivable $ 864,199 $ 873,147
Allowance for doubtful accounts (5,783) (7,973)
Accounts receivable, net $ 858,416 $ 865,174