Mudloifah, Istatik, and Tarzan Purnomo. “Analysis of Water Quality in Asmoroqondi Beach, Palang District, Tuban Regency Using the Principal Component Analysis (PCA) Method”. LenteraBio : Berkala Ilmiah Biologi 12, no. 3 (June 11, 2023): 273–280. Accessed June 26, 2025. https://journal.unesa.ac.id/index.php/lenterabio/article/view/23512.