You have to answer the following questions:
1. Does she have to go to college to earn a living for her husband?
2. Assuming the answer to #1 is yes, are her parents capable of being reasoned with?
3. Assuming the answers to both #1 and #2 are yes, then you should be able to convince them to let her go.
If not, then your friend has to realize that she can’t have everything. She may have to marry someone who is willing to forego the first couple of years of learning while she earns a degree (once she’s married, her obligation of kibbud av in that respect may no longer apply) or else learn to live with a job that does not require a college education.
The Wolf