ADI SUTRISNO, NIM 1110246499. The effect of interaction quality, the environment and the results of the customer satisfaction and loyalty on Persero PT. Waskita Karya Tbk Regional Division I – Sumatra. The study was Conducted at Persero PT. Waskita Karya Tbk Regional Division I – Sumatra. The Purpose of this study to analyze the services quality interms of the dimension of interaction qual…