Yugiantoro, Darojat, Eka Nuryanto Budisusila, Agus Suprajitno, and Arief Marwanto. “Development of a Non-Invasive Anemia Detection System Using Photoplethysmography (PPG) and Fuzzy Logic for Hemoglobin Level Estimation”. MEDIKA TRADA 6, no. 2 (November 30, 2025): 153–161. Accessed May 23, 2026. https://journal.polbitrada.ac.id/index.php/Jtemp/article/view/163.