SITOMPUL, D. P.; SALQAURA, S. A.; RINI, E. S.; SEMBIRING, B. K. F. Implementation of entrepreneurial marketing in improving sustainability performance of SME in pandemic age: case study on start up in Medan. International journal of business, economics & management, [S. l.], v. 4, n. 2, p. 301-309, 2021. DOI: 10.31295/ijbem.v4n2.1643. Disponível em: https://sloap.org/journal/index.php/ijbem/article/view/1643. Acesso em: 16 jul. 2024.