ESPINOSA CORTÉS, Luz María.
 Regionalization of the production farming and social polarization in Soconusco, Altos and Frailesca, Chiapas, 1970-1991.
<strong>CIENCIA ergo-sum</strong>, [S.l.], v. 3, n. 1, p. 77-86, oct. 2017.
ISSN 2395-8782.
Available at: &lt;<a href="https://cienciaergosum.uaemex.mx/article/view/8027" target="_new">https://cienciaergosum.uaemex.mx/article/view/8027</a>&gt;. Date accessed: 04 oct. 2026.