ASCE, 1971
Buku Teks
Disque, Robert O.
Van Nostrand Reinhold, 1971
Buku Teks
Duggal, S.K.
Tata McGraw-Hill, 2000
Buku Teks
Salmon, Charles G.
Harper and Row , 1980
Buku Teks
Salmon, Charles G.
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Buku Teks