Petrokimia Gresik Perwakilan Jakarta , 1995
Buku Teks
Burns, D.T., author
John Wiley & Sons, 1981
Buku Teks
Pandey, G.N., author
Vikas Publishing House, 1974
Buku Teks
Spronsen, J.W. van, author
Elsevier, 1969
Buku Teks
Criddle, W.J., author
John Wiley & Sons, 1980
Buku Referensi