Muhamad, Zuriati, et al. “The Effect of Audio-Visual Danger Signs of Pregnancy Knowledge of Pregnant Mothers in Work Area Public Health Center Tilango”. ABDIMAS: Jurnal Pengabdian Masyarakat, vol. 5, no. 2, Oct. 2022, pp. 2871-4, doi:10.35568/abdimas.v5i2.2792.