1
Published in 1979
Repository
2
3
4
by Viteri D., Pablo; Vásquez C., Wilson; León F., Juan; Viera, William; Poso M., Manuel; Hinojosa, Milton; Revelo, Jorge; Ochoa L., José
Published in 2009
Repository
5
by Revelo, Jorge; Cazco, Carlos; Castillo, Néstor; Sandoval, Alicia; Sánchez, Gabriela; Lomas, Luis; Corrales, Andrés
Published in 2007
Repository
6
Published in 1987
Repository
7
by Revelo, Jorge; Cazco, Carlos; Castillo, Néstor; Sandoval, Alicia; Sánchez Delgado, Gabriela Alexandra; Lomas, Luis; Corrales, Andrés
Published in 2009
Repository
8
9
Published in 2004
Repository