SURYA, N. K. A. R. Social opportunity on coffee shop. International journal of life sciences and earth sciences, [S. l.], v. 2, n. 1, p. 13-18, 2019. DOI: 10.31295/ijle.v2n1.74. Disponível em: https://sloap.org/journal/index.php/ijle/article/view/74. Acesso em: 2 may. 2026.