<p>In general terms, it seems to me an attractive and interesting subject to analyze. The reality of Latin America and the expansion of higher education as a means to "achieve goals in life" can be understood from this perspective.<br />Even so, it is essential to review formal elements of the citation and referencing of articles and books that support the study, since I identified several citations that are not referenced, as well as references that are not cited anywhere in the article.<br />I attach a document with these revisions so they can be adjusted.</p>