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Richard D. Irwin, 1976
Buku Teks
Rotch, William
Prentice-Hall, c1995
Buku Teks
Merchant, Kenneth A.
Prentice-Hall, 1998
Buku Teks
Menezes, Francis A.
Tata McGraw-Hill, 1977
Buku Teks
Cruickshank, Henry M.
Richard D. Irwin, 1958
Buku Teks