Balje, O.E.
Turbomachines: a guide to design, selection and theory
John Wiley & Sons, 1981
 Buku Teks
Holdsworth, Roger F.
Personnel selection testing : a guide for managers
Brithis Institute of Management, 1972
 Buku Teks
Lansdown, A.R.
Lubrication : a practical guide to lubricant selection
Pergamon Press, 1982
 Buku Referensi
Lansdown, A.R.
Lubrication : a practical guide to lubricant selection
Pergamon Press, 1982
 Buku Referensi
Balje, O. E.
Turbomachines : a guide to design selection and theory
Wiley, 1981
 Buku Referensi