ET.AL, H. J. S. . Marketing Management Concept and Coaching of Leadership Methods in Operations Management of Companies: Case Study of Cellular Telecommunications Companies in Medan City. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 13, p. 4350–4357, 2021. DOI: 10.17762/turcomat.v12i13.9477. Disponível em: https://turcomat.org/index.php/turkbilmat/article/view/9477. Acesso em: 6 may. 2024.