Azkiya, Noor Isnaini, 		Prasetia, Fanny, 		Putri, Elsa Desyta, 		Rosiana, Anggita, AND 		Wardhani, Sri.
" Synthesis of precipitated Calcium Carbonate (PCC) From Lime Rock Nature Methods Caustic Soda (Studies Concentration HNO3)" <em>Jurnal ILMU DASAR</em> [Online], Volume 17 Number 1 (24 January 2017)