Dever, G. E. Alan, author
Aspen Systems Corp., 1980
Buku Teks
Dever, G. E. Alan, author
Aspen Publishers, 1991
Buku Teks
Henry Kimpton Pub. , 1978
Buku Teks
edited by Harry Rosen
Spectrum Publ. , 1977
Buku Teks
Leavel, Hugh Rodman, author
McGraw-Hill, 1958
Buku Teks