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DAR'P21 UG/20373 UG/20374 UG/20375 UG/32778 UG/32779 UG/32780 UG/32781 UG/32782 Dara, S. S. A Textbook of engineering chemistry / S. S. Dara; revised by S. S. Umare. – 25th ed. – New Delhi : S Chand , 2021 (2022 reprint) xvi, 972 [4]p. ISBN9788121903592 : Rs.650/- . Chemistry, Technical . Umare, S. S. |
