Muhammad Najibulloh Muzaki, Rina Firliana, Rini Indriati, Anita Sari Wardani, and Erna Daniati. “MULTILEVEL ENCRYPTION USING A COMBINATION OF BASE64 AND PEPPER CRYPTOGRAPHY ALGORITHM”. Jurnal Qua Teknika, Vol. 15, no. 01, Mar. 2025, pp. 14-24, doi:10.35457/quateknika.v15i01.4364.