LOMBOK PEARL QUALITY CLASSIFICATION USING A COMBINATION OF FEATURE EXTRACTION AND ARTIFICIAL NEURAL NETWORKS BASED ON SHAPE. Jurnal Pilar Nusa Mandiri, [S. l.], v. 18, n. 2, p. 167–172, 2022. DOI: 10.33480/pilar.v18i2.3507. Disponível em: https://ejournal.nusamandiri.ac.id/ejurnal/index.php/pilar/article/view/3507. Acesso em: 12 feb. 2026.