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- [3] Improved Automated System for AC Voltage Calibrations Using Extending Range Resistors MAPAN-JOURNAL OF METROLOGY SOCIETY OF INDIA, 2017, 32 (01): : 39 - 42
- [4] Improved Automated System for AC Voltage Calibrations Using Extending Range Resistors MAPAN, 2017, 32 : 39 - 42