Sudirman, N. 2023. Optimization of FeSO4 Molarity for Synthesis of Prussian Blue Pigment from Iron Sand from Sunur Beach Estuary, Pariaman. Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta). 15, 2 (Sep. 2023), 21-25. DOI:https://doi.org/10.20956/ica.v15i2.20087.