Herjuno, Galang Ciptaning, Haryono Haryono, Tri Mulyaningsih, and Bambang Suwerda. 2026. “Utilization of Poultry Egg Shell Types on the Reduction of Fe Levels in Well Water”. Buletin Keslingmas 45 (2):113-19. https://doi.org/10.31983/keslingmas.v45i2.13680.