1.
Rev. CIEZT
;
5(7): 43-52, ene.-dic. 2000.
Article
in Spanish
| LILACS
| ID: lil-279106
2.
Rev. CIEZT
;
5(7): 109-17, ene.-dic. 2000.
Article
in Spanish
| LILACS
| ID: lil-279113