Meneses Benavides, Gustavo. Common Difficulties Observed in Abstracts Written in English by People Having Spanish As Mother Tongue. Revista Escuela de Administración de Negocios, no. 70 (agosto 1, 2011): 78-86. Accedido junio 5, 2020. https://journal.universidadean.edu.co/index.php/Revista/article/view/534.