A. P. Exacta, Muhammad Zain Musa, Erika Laras Astutiningtyas, Andhika Ayu Wulandari, and Krisdianto Hadiprasetyo, “Cybernetic-Based Numeracy Empowerment for Secondary Mathematics Teachers: A Community Engagement Perspective”, J. Comm. Serv. Edu., vol. 4, no. 2, pp. 98–108, Jun. 2025.