Nurfitriani M Siregar, Gina Sonya Pane, Mhd Alwi Ritonga, Iqbal Hakim Hasibuan, and Ahmad Riski Sulaiman Nasution, “Building Environmental Awareness through Communication in the Coastal Areas of Batahan Subdistrict, Mandailing Natal, North Sumatra”, IJCSI, vol. 3, no. 3, Dec. 2025.