Samson, Meynard, and Francis Balahadia. “Leveraging Defect Trend Analysis for Sustainable Printed Circuit Board and Assembly (PCBA) Quality Assurance: A Low-Cost Portable Smart Inspection Solution for Small-Scale Electronics Manufacturers”. Isabela State University Linker: Journal of Engineering, Computing and Technology, vol. 2, no. 2, Dec. 2025, pp. 1-14, doi:10.65141/ject.v2i2.n1.