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Mike Holt's 2023 Understanding the National Electrical Code, Vol. 1 textbook (Art. 90-480)
2023 Understanding the National Electrical Code, Vol. 2 textbook (Art. 500-820)
Mike Holt's Understanding the National Electrical Code Workbook, Articles 90-480, Based on the 2023 NEC
2023 Understanding the National Electrical Code, Vol. 1 textbook (Art. 90-480)
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