THE DIFFICULTIES FACED BY NGOS IN THE SOCIAL MARKETING OF THEIR SERVICES DURING THE CORONA PANDEMIC (COVID-19). International Development Planning Review, [S. l.], v. 23, n. 1, p. 84–101, 2024. Disponível em: https://idpr.org.uk/index.php/idpr/article/view/125.. Acesso em: 23 jul. 2024.