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ACCRUED EXPENSES (Tables)
12 Months Ended
Apr. 30, 2023
Payables and Accruals [Abstract]  
Schedule of accrued expenses
        
   2023   2022 
Payroll related costs  $112,894   $118,062 
R&D costs   287,310    377,155 
Other   58,096    3,793 
Total  $458,300   $499,009