visitas

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• Tourism approach and sustainability in the standardization of beaches

  Freddy De Jesús Vargas-Leira, Danna Carolina Montanez Santiago

• Reading and educational levels in Colombia

  José Luis Ramos Ruiz, Camilo Madariaga Orozco, Yasmira Batista Barraza, Jaime Andrés Rueda Chacón, José Daniel Ramos Camargo

• Postcrisis reflection

  Néstor Juan Sanabria Landazábal; Nicolás Pablo Barrientos Oradini, Jesús Daniel Bovea De la Hoz

• Intelligence: human, economic and artificial against the effects of Covid-19

  Albert-Pol Miró-Pérez, Joan Torrent-Sellens