A. IBRAHIM, Fatma; A. AMARIF, Mabroukah. The Mechanism of Secure Watermarking based on Encryption and Attached Frame with Image. Journal of Pure & Applied Sciences , [S. l.], v. 18, n. 4, p. 51–54, 2019. DOI: 10.51984/jopas.v18i4.386. Disponível em: https://www.sebhau.edu.ly/journal/jopas/article/view/386. Acesso em: 6 nov. 2026.