Orr, Robert T., author
Saunders, 1976
Buku Teks
Romer, Alfred Sherwood, author
Saunders College, 1977
Buku Teks
Romer, Alfred Sherwood, author
Saunders College, 1985
Buku Teks
Romer, Alfred Sherwood, author
W.B. Saunders, 1978
Buku Teks
Shumway, Waldo, author
John Wiley & Sons, 1954
Buku Teks