Oppenheim, L., author
Longmas, Green , 1963
Buku Teks
Oppenheim, L., author
Longmas, Green , 1958
Buku Teks
Magee, John H.
R. D. Irwin, 1964
Buku Teks
Horst, H. L. van der.
Centrex Pub. Co, 1964
Buku Teks
Crouse, William H., author
McGraw-Hill , 1984
Buku Teks