You are required to have three letters of recommendation submitted on your behalf. The letters should be submitted by instructors in a discipline related to your proposed field of study who are in a position to analyze your abilities and academic promise. Letters may be submitted online or on paper via regular mail; online submissions are strongly preferred.
References may also be required of companies seeking to win contracts, particularly in the fields of engineering, consultancy, industry and construction, and with regard to public procurement and tenders. Reference letters for organizations are used to assess its ability to deliver the required level of service.