HERNANI, H.; MUNAF, Y.; RAHMAN, K.; YOGIA, M. A.; PRIHATIN, P. S. Implementation of policy for collecting parking retributions in an urban forest in Rokan Hilir regency Indonesia. International journal of health sciences, [S. l.], v. 6, n. S6, p. 4494–4506, 2022. DOI: 10.53730/ijhs.v6nS6.11616. Disponível em: https://sciencescholar.us/journal/index.php/ijhs/article/view/11616. Acesso em: 12 may. 2026.