“Identifikasi Kadar Hemoglobin Rendah Pada Calon Pendonor Darah Di Yogyakarta: Identification of Low Hemoglobin Levels in Prospective Blood Donors in Yogyakarta”. Journal of Health 12, no. 1 (August 14, 2025): 139–148. Accessed May 5, 2026. https://journal.gunabangsa.ac.id/joh/article/view/99.