Dalton, Melville
John Wiley & Sons,Inc. , 1959
Buku Teks
Dalton, Melville
John Wiley , 1966
Buku Teks
McFarland, Dalton E.
Macmillan, 1974
Buku Teks
McFarland, Dalton E.
MacMillan Co., 1959
Buku Teks
Koontz, Harold, author
McGraw-Hill Book , 1964
Buku Teks