Current state of agricultural units: as a phenomenon and complexity. - RÍOS PÉREZ, Juan David; CRISSIEN BORRERO, Tito José; RAMÍREZ MOLINA, Reynier Israel; VILLALOBOS ANTÚNEZ, José Vicente; LAY RABY, Nelson David; RAMOS MARQUEZ, Yanelis Margarita (Utopia y Praxis Latinoamericana, 2020)