1. Strategic management: text and cases Dess, Gregory G. New York : McGraw-Hill Irwin, [2023]. BUS460
2. Planning and managing public relations campaigns: a strategic approach Gregory, Anne, 1953- London, United Kingdom ; Kogan Page, 2021. JOUR450
3. Game engine architecture Gregory, Jason, 1970- Boca Raton, FL : CRC Press, Taylor & Francis Group, [2019] GDM511 DSA213 MDIT420