Nisaul Kamila, Z. Sofyan, and Nurul Azmi, “Implicit Meanings of Social Issues in The Animated Series Freej: An Umberto Eco Semiotic Analysis: Al-Ma’ani al-Dimniyyah li al-Qadaya al-Ijtima’iyyah fi al-Musalsal al-Kartuni Freej: Dirasah Simiyaiyyah ’inda Umberto Eco”, nahdah, vol. 6, no. 2, pp. 196–210, Aug. 2026.