The Library is unable to acquire access to Harvard Business Review case studies as they have very strict licensing rules that do not allow for sharing copies. This also prevents us from borrowing these from other libraries via interlibrary loan, and, in fact, many libraries do not purchase these case studies at all due to these lending restrictions. We have some case studies available on Course Reserve, held at the front desk. Check with your professor to see if they are available for loan from the Course Reserves department.
Unfortunately, individual purchase is the only option for obtaining these case studies from HBR.