1. Asian Development Bank, Philippines (1996).Philippine education in the 21 st century. The 1998 Philippine education sector study. Pasig City: Commission on Higher Education.
2. Bullough, Jr. R. V. D., Kauchak, N. A., Crow, S., & Hobbs, D. (1997). Professional development schools: Catalyst for teacher and school change.Teaching and Teacher Education, 13(2), 153–169.
3. Bureau of Elementary Education (1982).PRODED Primer. Manila: Department of Education, Culture and Sports.
4. Bureau of Secondary Education (1993).Manual of information. Manila: Department of Education, Culture and Sports.
5. Castillo, N. M. (1987). Education and national reconstruction.UNITAS, 60(3), 271–282.