Syarifah Syarifah, Titis Wahyuono, and Elfrida Aryani Liwu. “Relationship Between Mobile Unit Activities and Blood Availability at UDD PMI Surakarta City Trimester 2 of 2022”. Formosa Journal of Applied Sciences, vol. 2, no. 8, Sept. 2023, pp. 2053-64, doi:10.55927/fjas.v2i8.5851.