Sukardi, Budi, et al. “Donation Intention and Behavior in Indonesian Digital Crowdfunding: Integrating Social Presence and Interpersonal Behavior Theories”. Jurnal Ilmiah Peuradeun, vol. 14, no. 2, May 2026, pp. 1073-96, https://doi.org/10.26811/peuradeun.v14i2.1217.