Lesbian themed books?

Does anybody knows where I can download free lesbian themed books? I've read Nancy Garden's Annie On My Mind and Good Moon Rising cause they were the only ones I found for free, they have to be free, pdf, doc or epub, I don't like doing this but I don't live in the US so I can't buy books online even if I wanted to, If somebody can help me giving me some links or even book suggestions and I'll search them, anything please I'll appreciate it.