The Price Dynamics of Hand Sanitizers for COVID-19 in Indonesia: Exponential and Cobweb Forms. Indonesian Journal of Science and Technology, [S. l.], v. 5, n. 2, p. 176–184, 2024. Disponível em: https://ejournal.kjpupi.id/index.php/ijost/article/view/120.. Acesso em: 12 oct. 2025.