Eppen, Gary D.
Prentice-Hall, 1984
Buku Teks
by G.D. Eppen ... [et.al.]
Prentice Hall International, 1998
Buku Teks
Taylor, Bernard W.
Pearson Education, 2004
Buku Teks
Wagner, Harvey M.
Prentice-Hall, 1970
Buku Teks
Taylor, Bernard W.
Prentice-Hall, 2004
Buku Teks