arifin muhammadweni,kartika2025-07-022024-07-30Jurnalhttps://repository.polibatam.ac.id/handle/PL029/4102discoloration issueenDiscoloration issue analysis on smart7 productArticleNIM3221901032/ NIDN0020068902 /NIDKKODEPRODI20406#TEKNIK ELEKTRONIKA MANUFAKTUR