Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

ACCOUNTS RECEIVABLE (Details)

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ACCOUNTS RECEIVABLE (Details) - USD ($)
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2016
Accounts receivable, gross $ 29,131,547 $ 23,078,659  
Less: allowance for doubtful accounts (1,997,310) (1,817,050) $ (1,648,178)
Accounts receivable, net $ 27,134,237 $ 21,261,609