61
62
63
64
Published in 1998
Repository
65
by Peralta I., Eduardo; Mazón, Nelson; Murillo I., Angel; Rodríguez Ortega, Diego Geovanny; Minchala G., Luis; Domínguez Olmedo, Diana Elizabeth; Mina Chala, Diego Fernando
Published in 2015
Repository
66
67
by Peralta I., Eduardo; Vásquez G., José; Mora C., Eloy; Murillo I., Angel; Pinzón Z., José; Lépiz I., Rogelio
Published in 1994
Repository
68