References

Designing Buildings Wiki, 2019. Share your construction industry knowledge. Designing Buildings Ltd., UK.

Duff, V., 2019. A single-page marketing plan. Azcentral.Com., The Arizona Republic, Phoenix, Arizona.

Ortiz, O., J.C. Pasqualino, G. Diez and F. Castells, 2010. The environmental impact of the construction phase: An application to composite walls from a life cycle perspective. Resour. Conserv. Recycl., 54: 832-840.
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Oxford Business Group, 2018. The report: Philippines 2018. Oxford Business Group, London, England.

PSA., 2018. Gross value and gross value added in construction. Philippine Statistics Authority, Quezon City, Philippines.

Philippine Statistics Authority, 2018. Construction statistics from approved building permits: Third quarter 2018 (preliminary results). Philippine Statistics Authority, Quezon City, Philippines.

Roofing Contractor, 2018. Roofing contractor’s state of the industry report and survey 2018. Roofing Contractor Inc, Washington.

Roofing Marketing Pros, 2019. How to get 60 roofing leads a month. Roofing Marketing Pros, Miami, Florida.

Ruzzier, M.K., M. Ruzzier and R. Hisrich, 2014. Marketing Plan. In: Marketing for Entrepreneurs and SMEs, Ruzzier, M.K., M. Ruzzier and R. Hisrich (Eds.). Edward Elgar Publishing, Cheltenham, England, pp: 37-45.