Edahwati, Luluk, Sutiyono, Rahmaniar Naulita Hutagalung, and Siti Robiatuz Zahrotun Nukhuf. 2022. “Synthesis of Calcium Phosphate from Boiler Egg Shells As Raw Material for Hydroxyapatite”. Nusantara Science and Technology Proceedings, November, 108-13. https://doi.org/10.11594/nstp.2022.2718.