Pradesi, J., R. Yahya, and M. M. Anwar. “Improvement of Repair Service Quality Using Service Quality and Quality Function Deployment Methods (Case Study at UD Dua Teknik ASC PT LG Electronics)”. International Journal of Seocology, vol. 2, no. 03, Aug. 2021, pp. 119-28, https://seocologi.com/index.php/seocology/article/view/34.