Olavarrieta MA, Tovar O, Salcedo D. Educational unit Simón Bolívar. Environmental classification and the influence on their failures. Gaceta Técnica [Internet]. 2017 Dec. 6 [cited 2026 Oct. 5];18(1):53-70. Available from: https://mail.revistas.uclave.org/index.php/gt/article/view/300