... impacts) to the satisfaction of investors in industrial zones in Thai Nguyen province include: (1) Compliance of commitments with investor of the Industrial Zone Management Authority; (2) The ... service quality, Gronroos (1984) has developed the service quality model based on three key aspects: (1) Differentiating between functional quality and technical quality Functional quality means an ... that factors in customers’ assessment of service quality could be expressed through 10 points: (1) Tangibles, (2) reliability, (3) the responsiveness, (4) approach, (5) credibility, (6) the safety,...