Kusuma, Rizki, and Damelina Basauli Tambunan. “The Analysis of Customer Satisfaction Assessments to Determine E-Siap Product Development Strategies”. KnE Social Sciences 5, no. 5 (March 22, 2021): 622–635. Accessed April 20, 2024. https://knepublishing.com/index.php/KnE-Social/article/view/8847.