PANGEMANAN, T.; HUTABARAT, J. E. .; DAMOPOLII, N. A. .; LOMPOLIU, S. V. .; KAPAHANG, C. C. . Implementation of a Quality Management System in E-Learning Services: A Case Study of Google Classroom. Cerdika: Jurnal Ilmiah Indonesia, [S. l.], v. 6, n. 3, p. 1129–1136, 2026. DOI: 10.59141/cerdika.v6i3.3390. Disponível em: https://www.cerdika.publikasiindonesia.id.solusipublish.com/index.php/cerdika/article/view/3390. Acesso em: 26 may. 2026.