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SIN'P13 UG/8497 UG/8498 Singh, Surjit Electrical design estimating and costing / by Surjit Singh and Ravi Deep Singh. – Delhi : Dhanpat Rai, 2013 (2019 reprint) multy pg. : ill. Rs.395/- . Electric wiring . Singh, Ravi Deep |
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SIN'P13 UG/8497 UG/8498 Singh, Surjit Electrical design estimating and costing / by Surjit Singh and Ravi Deep Singh. – Delhi : Dhanpat Rai, 2013 (2019 reprint) multy pg. : ill. Rs.395/- . Electric wiring . Singh, Ravi Deep |
