Lewis, John P.
Statistics explained
Addison-Wesley, 1999
 Buku Teks
Tennant, Kylie
Ride on stranger
Macmillan, [Date of publication not identified]
 Buku Teks
Arnaud, A. A.
Investment trusts explained / A. A. Arnaud
Woodhead-Faulkner, 1985
 Buku Teks
Metcalf, Michael
Fortran 90 explained
Oxford University Press , 1990
 Buku Teks
Mitchell, Mark L.
Research design explained
Wadsworth and Cengage Learning, 2013
 Buku Teks