Macronutrient Distribution on the North Coast of Pekalongan City, Central Jawa, Indonesia: Implications for Water QualityRoy Andreas, Intan Megasari, Mukti Trenggono, Hendrayana Hendrayana and Ade S OktavianiE3S Web Conf., 609 (2025) 01001DOI: https://doi.org/10.1051/e3sconf/202560901001