- Orbit Reader 20 Plus User Guide v1.3 (DOC)– Manual in Doc Format
- Orbit Reader 20 Plus User Guide v1.3 (PDF)– Manual in PDF Format
- Orbit Reader 20 Plus User Guide v1.3 (HTML) – Manual in HTML Format
- Orbit Reader 20 Plus User Guide v1.3 (BRF- Grade 1)– Manual in BRF Format
- Orbit Reader 20 Plus User Guide v1.3 (BRF- Grade 2)– Manual in BRF Format