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| Urja Published by: New Delhi, Urja (India) Subject: Energy Engineering - Electrical Engineering Petroleum And Gas Published: 1977 ISSN: 0378-9535 Available at 11 Universities. | |||
| Oil and Gas Journal Published by: Tulsa, PennWell Publishing Co. (United States of America) Subject: Petroleum And Gas Language: English Published: 1902 ISSN: 0030-1388 Available at 13 Universities. | |||