Ismail, I., F. Felecia, A. K. Azizah, and D. Rahmawati. “Social Media As an Early Warning System for Drug Prevention: Case Study of Surabaya’s Digital Surveillance Program”. The Eastasouth Journal of Information System and Computer Science, vol. 2, no. 03, Apr. 2025, pp. 171-82, doi:10.58812/esiscs.v2i03.519.