Should I mention my visa or work authorization on my resume?

Only briefly, and only if it helps. If you already have permission to work in the country and employers there commonly wonder about it, one short factual line can save questions. If not, you do not need to mention it on the resume at all.

Ways to handle it:

• If you have it: a short line in your personal details, such as "Work authorization: [country], valid until [month year]", written exactly as your documents allow.
• If it is complicated: leave it off the resume and answer the employer's questions honestly on the application form or at interview.
• Never guess or describe rules you are not sure of.

Rules about who can work, for how long and under what conditions are set by each country's government and change over time. Check the official government immigration website for the country, or ask your university's international student office, rather than relying on a resume guide.