2012 HPM 2012. The HPM Satellite Meeting of ICME-12. Proceeding book 1. Auteur : Barbin Evelyne. Dir.
2012 HPM 2012. The HPM Satellite Meeting of ICME-12. Proceeding book 1. Analysis on Lines and Circles in Secondary School Mathematics Textbooks according to the Types of Concept. p. 433-442. Auteurs : Ki Taewan ; Pak H. K.
