Arif Tirtana; Lusia Peni Lamen; Wiwit Sepvianti; Aulia Rahman; Gravinda Widyaswara; Kumara Rahmawati Zain; Selasih Putri Isnawati Hadi. Identification of Low Hemoglobin Levels in Prospective Blood Donors in Yogyakarta: Identifikasi Kadar Hemoglobin Rendah Pada Calon Pendonor Darah Di Yogyakarta. JoH 2025, 12, 139-148.