diff --git a/src/Sensors.md b/src/Sensors.md
index 5ea33ee..b326406 100644
--- a/src/Sensors.md
+++ b/src/Sensors.md
@@ -51,7 +51,7 @@ Our goal will to just measure pitch and roll because we will assume that the rob
**Pitch** is the angle deviation from horizontal of a straight line coming out of the front of the robot. **Roll** is the angle deviation from horizontal of a straight line going directly through the wheels. These are illustrated in the following figures:
-**Note:** An accelerometer cannot measure **yaw** because Earth's gravity acts in the same direction as the Z-axis, which prevents the accelerometer from measuring rotation on the Z-axis. Instead, a different sensor called a **magnetometer** (i.e., digital compass) could be used to measure yaw by measuring an object's orientation relative to Earth's magnetic north pole. [Reference](https://docs.idew.org/code-internet-of-things/references/physical-inputs/accelerometer)
+**Note:** An accelerometer cannot measure **yaw** because Earth's gravity acts in the same direction as the Z-axis, which prevents the accelerometer from measuring rotation on the Z-axis. Instead, a different sensor called a **magnetometer** (i.e., digital compass) could be used to measure yaw by measuring an object's orientation relative to Earth's magnetic north pole. (Reference: [IoT Code Guidebook - Accelerometer](https://docs.idew.org/code-internet-of-things/references/physical-inputs/accelerometer))
