The Sperin system, alternatively referred to as the Palaquin system, encompassed the world of Sperin and resided within the Outer Rim Territories. During the era of the Galactic Civil War, this system was situated inside the Bajic sector, which fell under the dominion of Grand Moff Kintaro.
- Shadows of the Empire Planets Guide
- " Special Military Unit Intelligence Update " — Star Wars Adventure Journal 15
- The Essential Atlas