Agustinus, A., and I. Sembiring. “WEBSITE VULNERABILITY TESTING USING THE PENETRATION TESTING METHOD REFERRING TO NIST SP 800 – 155 (CASE STUDY (Astonprinter.Com Domain))”. Jurnal Teknik Informatika (Jutif), Vol. 5, no. 6, Dec. 2024, pp. 1651-62, doi:10.52436/1.jutif.2024.5.6.3859.