1. “Empowering Chinese Service Employees: A Reexamination and Extension”,powpaka,Journal of Global Marketing,Volume 21, Number 4, 2008, p. 271-291 (Sole author)

2. “How Market Orientation Affects Female Service Employees in Thailand”,powpaka,Journal of Business Research,Volume 59, 2006, p. 54-61 (Sole author)

3. “Factors Affecting Managers’ Decision to Bribe: An Empirical Investigation”,powpaka,Journal of Business Ethics,Volume 40, Number 3, 2002, p. 227-246 (Sole author)

4. “Consumers’ Brand Choice of Pharmaceutical Products During Economic Depression: An Empirical Investigation”,powpaka,Journal of Pharmaceutical Marketing & Management,Volume 14, Number 1, 2001, p. 27-61 (Sole author)

5. “Factors Affecting the Adoption of Market Orientation by Employees: The Case of Thailand”,powpaka,Journal of International Marketing,Volume 6, Number 1, 1998, p. 33-55 (Sole author)

6. “The Role of Outcome Quality as a Determinant of the Overall Service Quality in Different Categories of Service Industries”,powpaka,Journal of Services Marketing,Volume 10, Number 2, 1996, p. 5-25 (Sole author)

7. “Factors Affecting the Doctor's Adoption of a New Pharmaceutical Product: An Empirical Investigation”,powpaka,Journal of Pharmaceutical Marketing & Management,Volume 11, Number 2, 1996, p. 67-97 (Sole author)

8. “Modeling Organ Donation Behavior: A Test of the Theory of Planned Behavior Model”,powpaka,Journal of Nonprofit & Public Sector Marketing,Volume 4, Number 3, 1996, p. 33-62 (Sole author)