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ACCOUNTS RECEIVABLE, NET (Details) - USD ($)
Sep. 30, 2021
Sep. 30, 2020
ACCOUNTS RECEIVABLE, NET    
Trade accounts receivable $ 1,945,719 $ 1,325,333
Less: allowances for doubtful accounts (212,413) (206,857)
Accounts receivable, net $ 1,733,306 $ 1,118,476