SIHOMBING, N. . The Importan Product Quality For Satisfaction and Loyality. PERSPEKTIF: Sudut Pandang Lintas Pengetahuan, [S. l.], v. 1, n. 1, p. 756–760, 2022. Disponível em: https://www.ojs.pseb.or.id/index.php/rd/article/view/401. Acesso em: 7 oct. 2026.