Asawa, G. L. (1996). Irrigation engineering (2nd ed.). New Age International.
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Tohutoru Kātū Chicago (17th ed.)
Asawa, G. L. Irrigation Engineering. 2nd ed. Calcutta: New Age International, 1996.
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Tohutoro MLA (9th ed.)
Asawa, G. L. Irrigation Engineering. 2nd ed. New Age International, 1996.
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Kua rahua te tārua ki te papatopenga
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