Back in 2000-2002 when I started studying Swedish, I used a book called Svenska utifrån (Roger Nyborg, Nils-Owe Petterson, Britta Holm.). It was good but I don’t see how you could use it without a teacher.
If you’re extremely motivated (and money isn’t an issue), you could try this: http://www.uiss.org/index.php/en/