Ulfah TM, Hazim H. Overview of the Prosocial Behavior of Volunteers of the East Java Muhammadiyah Disasster Management Center (MDMC) for Victims of the Semeru Eruption: Gambaran Perilaku Prososial Relawan Muhammadiyah Disasster Management Centre (MDMC) Jawa Timur Bagi Korban Erupsi Semeru. jims [Internet]. 2023 Aug. 30 [cited 2025 Sep. 7];5:10.21070/jims.v5i0.1573. Available from: https://jims.umsida.ac.id/index.php/jims/article/view/1573