Christian-Muslim RelationsDavid Thomas, Martha Theodora Frederiks, Clinton Bennett · First published 2023Open the Tome
Critical Readings in the History of Christian MissionMartha Frederiks, Dorottya Nagy · First published 2021Open the Tome
Vorstinnen, verleidsters en vriendinnen van GodMartha Theodora Frederiks · First published 2010Open the Tome
