Smith, Ella Thea
New York Hartcourt, Brace And Company, 1951
Buku Teks
Smith, Ella Thea
Harcourt, Brace & World, 1959
Buku Teks
Enger, Eldon D.
McGraw-Hill, 2009
Buku Teks
Enger, Eldon D.
McGraw-Hill, Higher Education, 2009
Buku Teks
edited by Philip C. Laris, Jack G. Reynolds
Burgess, 1970
Buku Teks