Engineering properties of kaolinitic clay with potencial use in drugs and cosmetics - Silva-Valenzuela, Maria das Graças da; Matos, Camila Martini; Shah, Liaqat Ali; Carvalho, Flavio Machado de Souza; Sayeg, Isaac Jamil; Valenzuela Díaz, Francisco Rolando (International Journal of Modern Engineering Research, 2013)