Hamidah, Hani, et al. “Prediction of Fulfillment of Blood Needs Using The Least Square Method at UTD PMI Cianjur Regency West Java”. Jurnal Kesehatan Siliwangi, vol. 4, no. 3, Apr. 2024, pp. 876-83, https://jurnal.polkesban.ac.id/index.php/jks/article/view/1999.