Amir Syamsudin
Yogyakarta State University
Indonesia

Amir Syamsudin was born at Ciamis, West Java on Februari, 4th, 1971. Graduated from Bachelor Degree in Theology & Philoshopy on March, 1997 and graduated from Master Degree in Islamic Philosophy on August, 1999 at IAIN Sunan Kalijaga Yogyakarta. Get fellowship from Higer Education (Dikti Kemendikbud) for visiting Scholar at College of Education, University of Illinois at Urbana-Champaign (UIUC), Illinois, USA, October 2010 until January 2011 to search literature. Faculty of Islamic Education at Yogyakarta State University on August, 1999 until now.

Budiyono Budiyono
Surakarta State University
Indonesia

Professor at Faculty of Teacher Training and Education, Study Program Mathematic Education, Sebelas Maret University, Surakarta.

Sutrisno Sutrisno
Sunan Kalijaga State Islamic University, Yogyakarta
Indonesia

Sutrisno, Professor at Faculty of Teacher Training and Education, Study Program Islamic Education, Sunan Kalijaga State Islamic University, Yogyakarta.