SINGH, G. (1993). A textbook of estimating costing and valuation. Standard Publishers.
Tohutoru Kātū ChicagoSINGH, Gurcharan. A Textbook of Estimating Costing and Valuation. Standard Publishers, 1993.
Tohutoro MLASINGH, Gurcharan. A Textbook of Estimating Costing and Valuation. Standard Publishers, 1993.
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