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4. LEASES (Tables)
3 Months Ended
Mar. 31, 2019
Leases  
Maturity of Operating Lease Liabilities
    March 31, 2019  
2019   $ 80,176  
2020     108,591  
2021     54,940  
2022     -  
Total lease payments     243,707  
Less imputed interest     (15,870 )
Present value of lease liabilities   $ 227,837