MARWANTO, A., and S. MULYATI. “PENGARUH VARIASI BIOKOAGULAN CANGKANG TELUR AYAM TERHADAP PENURUNAN PARAMETER FE AIR SUMUR GALI”. Journal of Nursing and Public Health, Vol. 10, no. 2, Oct. 2022, pp. 178-83, doi:10.37676/jnph.v10i2.3168.