Haryadi Setiabudi, D., Agus Widyadana, I.G. and Teng, H.-M. 2020. Exploring the Usage and the User Interface of Mobile apps for Donors in Natural Disaster in East Java, Indonesia. KnE Life Sciences. 5, 3 (Mar. 2020), 72–84. DOI:https://doi.org/10.18502/kls.v5i3.6561.