Tiffany Setyo Pratiwi and Syafira Fajri Br Sitepu, “The Role Of International Non-Governmental Organizations (NGOs) In Disaster Management Of Mt. Sinabung Eruption In Karo District, North Sumatra, Indonesia”, Harmoni-widyakarya, vol. 1, no. 2, pp. 27–36, May 2023.