Gaya APA
Cho, S, J. (2015).
The Proceedings of the 12th International Congress on Mathematical Education : Intellectual and Attitudinal Challenges ( Part IV, V, VI, VII) .
Japan:
Springer International Publishing.
Gaya MLA
Cho, Sung, Je.
"The Proceedings of the 12th International Congress on Mathematical Education : Intellectual and Attitudinal Challenges ( Part IV, V, VI, VII)".
Japan:
Springer International Publishing,
2015.
e-book.