Paula Tamba, Prihatin Lumbanraja, and Nazaruddin. “SENTIMENT ANALYSIS FOR IMPROVING THE QUALITY OF IMMIGRATION M-PASSPORT SERVICES”. International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS), vol. 4, no. 5, Oct. 2024, pp. 1424-38, doi:10.54443/ijebas.v4i5.1989.