Silva, Eliud, and Aram Ramos. “Measurement of Potential Child Labour: A Methodological Demographic Proposal”. Población y Salud en Mesoamérica 8, no. 2 (January 1, 2011). Accessed May 2, 2024. https://www.revistas.ucr.ac.cr/index.php/psm/article/view/738.