Yazar: Maxwell, Douglas, Rojas, María del Rosario, Gilbertson, Robert L., Cansino, M., Abouzid, A.M., Morales, Francisco J., Purcifull, D.E., Hiebert, E., Loniello, Amy, Martínez, Teresa, Brown, Judith, Hanson. Stephen F., Hoogstraten, Rebecca A., Ahlquist, Paul, Beaver, James S., Azzam, Ossmat, Karkashin, James, Anderson, Pamela, Beebe, Stephen, Singh, Shree P., Blair, M.W., Rosas, Juan Carlos, Thung, Michael, Anesio, Bianchini, Russell, R.L., Saladin, Freddy, Méndez Bautista, Rosa María, Nin, Julio Cesar, Angeles, Rosendo, Miguel, Herrera, Martinez, Teresa

Kurum: Universidad de Costa Rica

Repositorio: Kérwá