VENKATRAMAIAH C. (2013). GEOTECHNICAL ENGINEERING (4 TH.). NEW AGE INTERNATIONAL PUBLISHERS.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVENKATRAMAIAH C. GEOTECHNICAL ENGINEERING. 4 TH. NEW DELHI: NEW AGE INTERNATIONAL PUBLISHERS, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVENKATRAMAIAH C. GEOTECHNICAL ENGINEERING. 4 TH. NEW AGE INTERNATIONAL PUBLISHERS, 2013.
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