Dyana Zakaria, Nor, et al. “Effect of 60NM Polystyrene Latex Nanopartcles Concentration Towards Calculation of Measurement Uncertainty and Z-Score in Particle Size Analysis Using Dynamic Light Scattering Principle”. International Journal of Engineering & Technology, vol. 7, no. 4.25, Nov. 2018, pp. 283-5, https://doi.org/10.14419/ijet.v7i4.25.27000.