The World Bank, 1993
Buku Teks
Aswathanarayana, U., author
A.A. Balkema, , 2001
Buku Teks
McDonald, Adrian T., author
Wiley, 1988
Buku Teks
by Ray K. Linsley ... [et al.]
McGraw-Hill, 1992
Buku Teks
Goodman, Alvin S., author
Prentice-Hall, 1984
Buku Teks