Mantika DSD. Analysis of Noise Level Measurement and Mapping Using the Surfer Application at PT. PLN (Persero) ULPLTD Labuhan. JAEI [Internet]. 2026 Jun. 30 [cited 2026 Aug. 25];4(1):76-85. Available from: http://www.journal.lifescifi.com/index.php/jaei/article/view/1496