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3. CONTRACTS IN PROGRESS (Details - Contracts in progress) - USD ($) | Aug. 31, 2018 | Aug. 31, 2017
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Contractors [Abstract] |  |
Revenues in excess of billings | $ 1,985,597 | $ 1,481,082
Billings in excess of revenues | (384,603) | (216,958)
Revenues over billings on uncompleted contracts | $ 1,600,993 | $ 1,264,124

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