Wilonotomo W, Assiroj P, Wibowo A. ANALYSIS OF E-CLEARANCE CARE (SIERA) APPLICATION USING THE USABILITY TESTING METHOD AT CLASS I IMMIGRATION OFFICE TPI TANJUNG PERAK: ANALISIS APLIKASI E-CLEARANCE CARE (SIERA) MENGGUNAKAN METODE USABILITY TESTING DI KANTOR IMIGRASI KELAS I TPI TANJUNG PERAK. tematics [Internet]. 2022Dec.12 [cited 2026May3];4(2):21-3. Available from: https://journal.poltekim.ac.id/tematics/article/view/383