House Church and Mission by Roger Gehring

If you would be interested a modern technical (lengthy and scholarly) book about house churching, this may be the one for you. 

Granted, no books are necessary. But remember that Christ is Lord of all life and learning. And that he has ordained teachers in his church. So we can surely enjoy their work through the convenience of black and white print.

Caveats? It's a little pricey.