Fitriati
Differential item functioning: item level analysis of TIMSS mathematics test items using Australian and Indonesian database / Fitriati
STKIP Bina Bangsa Getsempena. Mathematics Department, 2014
 Artikel Jurnal
Stephen P. Norris
Reading for evidence and interpreting visualizations in mathematics and science education
Sense, 2012
 eBooks
Meserve, Bruce E.
Introduction to mathematics/Bruce Meserve, Max A. Sobel
Prentice-Hall, 1969
 Buku Teks
Fletcher, Peter
Foundations of discrete mathematics
PWS-Kent, 1990
 Buku Teks
Albertson, Michael O.
Discrete mathematics with algorithms
John Wiley & Sons, 1988
 Buku Teks