Martel Rosado, Milagros Delfina. 2013. “Shoes Import and Its Influence on Sales of Footwear Sector MYPES, District El Porvenir 2007 – 2011”. Cientifi-K 1 (1):95-104. http://revistas.ucv.edu.pe/index.php/cientifi-k/article/view/1337.