Oywari , M.E., Ricky , D.R. and Saragih, H. 2026. Size Stability and Optical Properties of ZnO Nanoparticles Coated with Tween 80 Polymer. Journal of Pharmaceutical and Sciences. 9, 2 (Jun. 2026), 1556–1565. DOI:https://doi.org/10.36490/journal-jps.com.v9i2.1542.