Wannaprapa, Mongkol, Narongpun Rungcharoen, and Wanchai Pijitrojana. “The Measurement System for Particle Size on Surface of Hard Disk Drive based on Experimental Light Scattering of BRDF Simulation”. ECTI Transactions on Electrical Engineering, Electronics, and Communications 9, no. 2 (August 1, 2010): 284–291. accessed April 6, 2025. https://ph02.tci-thaijo.org/index.php/ECTI-EEC/article/view/172506.