- Making the Crooked Straight, by Udo Schaefer, Nicola Towfigh, and Ulrich Gollmer: Review, by Christian Cannuyer, Greg Massiah, trans. (1998).
- Making the Crooked Straight, by Udo Schaefer, Nicola Towfigh, and Ulrich Gollmer: Review, by Denis MacEoin (2001-06).
- Making the Crooked Straight, by Udo Schaefer, Nicola Towfigh, and Ulrich Gollmer: Review, by Seena Fazel (2004-01-20).
- Making the Crooked Straight, by Udo Schaefer, Nicola Towfigh, and Ulrich Gollmer: Review, by Heshmat Moayyad (1998). — A commentary for Baha’is examining the balance of critical thought with loyalty to Baha’i instit...
- Making the Crooked Straight, by Udo Schaefer, Nicola Towfigh, and Ulrich Gollmer: Review, by Seena Fazel (2004).
- Making the Crooked Straight, by Udo Schaefer, Nicola Towfigh, and Ulrich Gollmer: Review, by Manfred Hutter (1997-10).
- Making the Crooked Straight, by Udo Schaefer, Nicola Towfigh, and Ulrich Gollmer: Review, by Christian Cannuyer (1997).
- Making the Crooked Straight, by Udo Schaefer, Nicola Towfigh, and Ulrich Gollmer: Review, by Christian Cannuyer (1997).
- Making the Crooked Straight, by Udo Schaefer, Nicola Towfigh, and Ulrich Gollmer: Review, by Iain S. Palin (2000 November).
- Making the Crooked Straight, review by Denis MacEoin: Responses, by Anthony Lee, Kavian Sadeghzade Milani, Udo Schaefer (2001). — Responses by Tony Lee, Kavian Milani, and Udo Schaefer to Denis MacEoin's review of Making the Crook...
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