Patiro, S.P.S. and Sihombing, S.O. 2014. Predicting Intention to Purchase Counterfeit Products: Extending the Theory of Planned Behavior. International Research Journal of Business Studies. 7, 2 (Aug. 2014), 109–120. DOI:https://doi.org/10.21632/irjbs.7.2.109-120.