Title:Estudio patológico del pavimento rígido paso nacional por Ipiales Carretera Guachucal - Ipiales pr 21+800 – pr 23+800. Carrera 7 entre calles 24 y 34 Ipiales (Nariño)
Title:Influence of vocabulary in the development of oral expression / Design of a booklet with useful vocabulary in order to develop the oral production