HELLEN ANDREA CASTRO TORRES2023-11-242023-11-242017-04-01http://repositorio.uia.ac.cr/handle/123456789/3250enTHE EFFECT OF THE NATURAL APPROACH AS A TOOL TO IMPROVE ORAL SKILLS OF INTERMEDIATE LEVEL STUDENTS AT A PRIVATE LANGUAGE INSTITUTION DURING THE SECOND BIMESTER OF 2017.Thesis