“TECHNOLOGICAL DEVELOPMENT OF A PROCESS FOR IMPROVING DIGESTION OF DAIRY PRODUCTS BY ß-GALACTOSIDASE DASA IMMOBILIZED”. Revista Peruana De Química E Ingeniería Química, vol. 1, no. 1, Sept. 1998, pp. 40-52, https://revistasinvestigacion.unmsm.edu.pe/index.php/quim/article/view/4265.