1. Arab sources:
2. Al-Ashqar, Fares Ratib, (2015): Philosophy of Thinking and Theories in Learning and Teaching, Amman, Jordan, Zahran Publishing and Distribution House.
3. Abu Gado, Saleh Muhammad Ali Nofal, Muhammad Bakr, (2007): Teaching theoretical thinking and practice, 1st edition, Amman - Dar Al Masirah for Publishing and Printing.
4. Abu Zaid, Adel Hussein, (2014): The Effectiveness of Teaching: Using Branched Thinking to Develop Concrete Achievement, Calculation of Constructions, and Some Habits of Mind and the Orientation toward Matter for Students of Secondary and Industrial Architectural Schools, Arab Studies in Education and Psychology - Saudi Arabia, No. 53, (p. 53). 103--154).
5. Ibrahim Ahmed Mahmoud, Abdel-Razzaq, Saied, Fatima, (2014): Effectiveness of a program based on cross-thinking strategies for developing creative reading skills and some productive habits of first-year secondary school students, Journal of the College of Education, Assiut - Egypt, No. 4, Volume 30, pp. 116 - 165.