Pursuing God's PresenceRoger Helland, Mark Buchanan, Mark Aldham Buchanan · First published 2023Open the Tome
Missional SpiritualityRoger Helland, Leonard Hjalmarson, Alan Hirsch · First published 2012Open the Tome
Missional Spirituality: Embodying God's Love from the Inside OutRoger Helland and Leonard Hjalmarson · First published 2011Open the Tome
Study of the clearance rates of lactate dehydrogenase from the serum of normal cattle and cattle afflicted with bovine lymphocytomaDavid Roger Helland · First published 1968Open the Tome
