Humphreys, Paul, McAleer, Eddie and McIvor, Ronan (1996) Strategic Purchasing: Implications for Northern Ireland Business. Irish Business and Administrative Research, 17 (2): 6. pp. 73-82. ISSN 0332-1118
Humphreys, Paul and Garvin, John (1995) Environmental Management in Northern Ireland Business: The Green Initiative. Irish Business and Administrative Research, 16 (1): 3. pp. 32-43. ISSN 0332-1118