Raj, P. P. (2016). Ground improvement techniques (2nd ed.). Laxmi Publications.
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Chicago-čujuhus (17. p.)
Raj, P. Purushothama. Ground Improvement Techniques. 2nd ed. Kolkata: Laxmi Publications, 2016.
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MLA-čujuhus (9. p.)
Raj, P. Purushothama. Ground Improvement Techniques. 2nd ed. Laxmi Publications, 2016.
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