1. De Morsella, C. The Green (or Sustainable) Building: Part I – What Is the Green Building DNA? http: /greeneconomypost. com/green-sustainable-building-2332. html (2009).
2. Cruz De La Cruz, C., Development of A Sustainable Building Rating System for The Philippines. A Priority Project of the PhilGBC. (2008).
3. Killough, D. Landscaping Part of Sustainable Building Too. http: /greenbuildingelements. com/ 2010/06/24/landscaping-part-of-sustainable-building-too/ (2010).
4. Sustainable Energy Authority Victoria. Landscape Design. Sustainable Energy Info Sheet, (2009) 1-5.
5. Green Roofs. Green Roofs for Healthy Cities: Introduction to Green Walls, www. greenroofs. org (2008).