Roberge, Pierre R.
McGraw-Hill, 2000
Buku Referensi
Roberge
McGraw-Hill Book , 2000
Buku Teks
Hanlon, Joseph F.
McgGraw-Hill Book Company, 1971
Buku Referensi
edited by James H. Potter
D. Van Nostrand, 1967
Buku Referensi
Bhatia, S. L.
Khanna Publishers, 1976
Buku Referensi