Department of Mathematics Education, Universitas Negeri Yogyakarta Indonesia
Was born on 3 January 1973. Currently works as a lecturer in the Faculty of Mathematics and Natural Sciences of Universitas Negeri Yogyakarta, Indonesia. Attained her bachelor degree on Mathematics Education in 1996 in Yogyakarta Instituteof Teacher Educationand Educational Sciences (recently known as Universitas Negeri Yogyakarta), master degree on Educational Research and Evaluation in 2003, and also doctoral degree in the same major in 2008, in the same University.