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Accounts Receivable (Tables)
3 Months Ended
Aug. 31, 2019
Receivables [Abstract]  
Schedule of accounts receivable

Accounts receivable, consisted of the following:

 

   August 31, 2019  May 31, 2019
    (Unaudited)      
Accounts Receivable  $38,039   $82,365 
Less: Allowance for doubtful debts   (435)   (2,777)
   $37,604   $79,588