Litbang dan energi sumber daya mineral,
Majalah, Jurnal, Buletin
Haldar, S. K. author
Elsevier, 2014
Buku Teks
Woolfson, M.M., author
Vikas Publishing House, 970
Buku Teks
edited ny Keith Friye
Hutchinson Ross, 1981
Buku Referensi
Winchell, Alexander N., author
John Wiley & Sons, 1937
Buku Teks