Putra, A.M. et al. 2025. Correlation Between Noise Levels and Noise-Induced Hearing Loss in Ground Handling Officers at Kualanamu Airport . Jurnal Biologi Tropis. 25, 2 (Apr. 2025), 1292–1295. DOI:https://doi.org/10.29303/jbt.v25i2.8867.