“A Study of Customer Satisfaction in Administration Procedure at Food Testing Laboratory by SERVQUAL Method”. International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695/IJERAT 5, no. 3 (March 20, 2019): 32–39. Accessed April 27, 2024. https://ijerat.com/index.php/ijerat/article/view/52.