Sabrina Rahmawati, et al. “The Quality of Service Provided by the Indonesian Red Cross Blood Transfusion Unit (UTD PMI) in Efforts to Increase the Number of Blood Donors from Generation Z in the City of Surabaya”. International Journal of Integrative Sciences, vol. 4, no. 10, Oct. 2025, pp. 2325-48, doi:10.55927/ijis.v4i10.615.