Single publication
1. Go to Scopus
2. Search for paper or author name
3. From paper record click on “View all .. citing documents”
4. Scroll down to Country/Territory limit. Count number of citing countries.
All of your publications
1. Go to Scopus
2. Go to author profile (click on your name from within a record for a paper)
3. Click on “Cited by … documents”
4. Click “View all in search results format”
5. Scroll down to Country/Territory limit. Count number of citing countries