How to do the research? Please give some detailed suggestions.

Topic 1 Students are to select THREE companies (Two companies if you are doing the assignment by yourself) from the Top 200 companies listed on the Australian Stock Exchange. Students should review the most recent annual reports along with the disclosure on the company website and any supplementary reports, including reliably sourced information in the media and rank the companies in terms of whether you think they have Good Corporate Governance. Students should also make a decision as to which company has better corporate governance based on the disclosures and fully justify the decision with examples and comparisons. Students should consider what constitutes Good Governance and whether the companies have disclosed enough information (Voluntary and Mandatory information) to allow them to be compared and ranked. In addition students should consider the company size, political visibility, and image of the company and how this may influence governance related disclosures. Note: Under no circumstances are companies to be contacted direct by students