215668, A. R. I. (1982). Effectiveness of backflushing technique to improve well productivity. Kuala Lumpur : Universiti Teknologi Malaysia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र215668, Abdul Razak Ismail. Effectiveness of Backflushing Technique to Improve Well Productivity. Kuala Lumpur : Universiti Teknologi Malaysia, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्र215668, Abdul Razak Ismail. Effectiveness of Backflushing Technique to Improve Well Productivity. Kuala Lumpur : Universiti Teknologi Malaysia, 1982.
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