Ed Tech Developer's Guide : A Primer for Software Developers, Startups, and Entrepreneurs / by Bienkowski, Marie, Gerard, Sarah Nixon, Rubin, Shawn, Sanford, Cathy, Borrelli-Murray, Dana, Driscoll, Tom, Arora, Jessie, Hruska, Mike, Beck, Katie, Murray, Thomas, Hoekstra, Jason, Gannes, Stuart, Metz, Edward, Midgley, Steve, Castilla, Stephanie, Tomassini, Jason, Madda, Mary Jo, Chase, Zac, Martin, Erik, Noel, Marcus, Styles, Kathleen