Russell, Roberta S., author
Pearson Education, 2003
Buku Teks
Gupta
S.CHAND & COMPANY LTD., 1979
Buku Teks
Meredith, Jack R., author
John Wiley & Sons, 1987
Buku Teks
by George Granger Brown [and others]
Wiley and Tuttle, c1978
Buku Teks
by George Granger Brown ... [and others]
John Wiley & Sons, 1978
Buku Teks