These are supplementary reference material, likely charts or additional data — Page 107, Lesson 97

This is just the table of contents for the VOR chapter — the page list showing where everything sits. Let me walk you through what this tells us about the structure we're about to work through. We start with the main body of the chapter around page 124, then we hit a set of practice questions on page 128. After that, we move into the in-flight procedures on page 129 — this is where we'll cover how you actually use the VOR in the cockpit during real operations. Then there's a VOR summary on page 132, which pulls together the key points, followed by more questions on page 133. After the chapter proper, we have three annexes — Annex A on page 141, Annex B on page 142, and Annex C on page 143. These are supplementary reference material, likely charts or additional data. Finally, the answers section starts on page 144, with the answers to the page 128 questions listed first. So the flow is: learn the theory, test yourself, learn the operational procedures, summarise, test again, then check your work against the answers. That's the roadmap. When you're ready, we'll dive into the actual VOR material starting on page 124.