N.M. Salih, et al. “A STUDY OF EVALUATION OF WATER QUALITY IN LUMUT PORT BY USING PH ANALYSISIN THE REDUCTION OF SEA CREATURES HARMNESS”. Marine Frontier, vol. 14, no. 2, Nov. 2023, pp. 90-97, https://ejournal.unikl.edu.my/index.php/mf/article/view/480.