PUSPITA SARI, R.; LAKSMI RITHMAYA, C. Evaluation of The Implementation of Standard Operating Prosedures (SOP) In Term Of Excellent Service By Customer Service Officer At Grapari Garuda Telkomsel Surabaya. International Journal of Science and Environment (IJSE), [S. l.], v. 5, n. 3, p. 413–416, 2025. DOI: 10.51601/ijse.v5i3.200. Disponível em: https://ijsenet.com/index.php/IJSE/article/view/200. Acesso em: 19 aug. 2025.