All artists and authors did many things, but for Star Wars purposes, Mark Sasso worked on: Star Wars New Jedi Order Sourcebook, Star Wars Galactic Campaign Guide. Star Wars: Geonosis and the Outer Rim Worlds. Star Wars: Ultimate Adversaries, Star Wars: Coruscant and the Core Worlds, "Darkness Shared" (Star Wars) in Star Wars Gamer #5, "Haunted" (Forgotten Realms) in Dragon #304, and "Red Sky, Blue Flame" (Star Wars) in Star Wars Gamer #7
If you know of any other Star Wars projects, let me know.
Obtained in an exchange.