NGUNGO, Domingos Tavares. Contribution of Communication and Expression Techniques to the Development of Skills in Human Resource Management: An approach from the Lubango IGS. OKULONGA - Revista Científica Multidisciplinar do IGS, [S. l.], v. 1, n. 1, p. e7, 2026. Disponível em: https://okulonga.infoacademia.org/index.php/ojs/article/view/7. Acesso em: 29 jul. 2026.