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- [2] A GOOD AUDIT IS THE 1ST STEP TOWARDS ENERGY-CONSERVATION [J]. CONTROL AND INSTRUMENTATION, 1980, 12 (08): : 29 - &
- [10] FLOW CHARTING - 1ST STEP IN PLANNING THE QUALITY ASSURANCE SYSTEM [J]. AMERICAN CERAMIC SOCIETY BULLETIN, 1979, 58 (03): : 311 - 311