PECK, R. B. (1973). Teknik Fondasi Ralph B. Peck, Walter E. Hansen, Thomas H T Hornburn. Gadjah Mada University Press.
Lua i Stíl Chicago (17ú heag.)PECK, Ralph B. Teknik Fondasi Ralph B. Peck, Walter E. Hansen, Thomas H T Hornburn. Gadjah Mada University Press, 1973.
Lua MLA (8ú heag.)PECK, Ralph B. Teknik Fondasi Ralph B. Peck, Walter E. Hansen, Thomas H T Hornburn. Gadjah Mada University Press, 1973.
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