Sya’diyah, Z., N. Salamah, and F. Alfiani. “ALGORITHM DESIGN OF ELGAMAL MAX-PLUS ALGEBRA FOR LETTER AND NUMBER CRYPTOGRAPHY WITH UNI-CUSTOM CIPHERTEXT”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan, Vol. 20, no. 4, Aug. 2026, pp. 3185-96, doi:10.30598/barekengvol20iss4pp3185-3196.