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3. CONTRACTS IN PROGRESS (Details - Billings to date) - USD ($) | Aug. 31, 2018 | Aug. 31, 2017
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Contractors [Abstract] |  |
Revenues earned to date on uncompleted contracts | $ 11,794,764 | $ 7,162,360
Billings to date on uncompleted contracts | (10,193,771) | (5,898,236)
Revenues over billings on uncompleted contracts | $ 1,600,993 | $ 1,264,124

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