Al Khoridatul Anisah, Syamsul Sodiq, Heny Subandiyah, Anas Ahmadi, Suhartono, Yermia Nugroho Agung Wibowo, “Semiotics in Innovative Language Learning: A Systematic Literature Review”, IJSE, vol. 41, no. 17s, pp. 1070–1089, Aug. 2026.