“Mangrove Species Density and Dynamics of Nitrate (NO3) on Sediments in the Manumadehe Island, South Jailolo District, West Halmahera Regency”. 2022. Agrikan Jurnal Agribisnis Perikanan 15 (2): 370-80. https://doi.org/10.52046/agrikan.v15i2.1216.