Willard, Hobart H. (Hobart Hurd), 1881-1974, author
D. Van Nostrand, 1956
Buku Teks
Blaedel, W.J., author
Harper & Row, 1963
Buku Teks
Alexeyef, V., author
Mir, 1969
Buku Teks
Pierce, Willis Conway, author
John Wiley & Sons, 1958
Buku Teks
Day, R.A., author
Prentice-Hall, 1958
Buku Teks