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Accounts Receivable (Tables)
9 Months Ended
Feb. 28, 2021
Receivables [Abstract]  
Schedule of accounts receivable

Accounts receivable, consisted of the following:

 

    February 28, 2021     May 31, 2020  
Accounts Receivable   $ 94,336     $ 184,019  
Less: Allowance for doubtful accounts     (2,392 )     (1,818 )
Total   $ 91,944     $ 182,201