Yustiyo, Rafhael, Shinta Gunawati Sutoro, Muhammad Irsal, Muhammad Rizqi, and Fitrus Ardoni. “Analysis of Pixel Values in Lateral Os Sacrum Radiographic Examinations Using Various Virtual Grid Ratios”. JPK : Jurnal Proteksi Kesehatan 14, no. 1 (July 17, 2025): 41-46. Accessed April 18, 2026. https://jurnal.polkesri.ac.id/index.php/JPK/article/view/1124.