2
Published in 1993
Repository
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 Pilapaña Juiña, Gladys Silvana; Racines Jaramillo, Marcelo Rafael; Mendoza, Luis; Vásquez C., Wilson
Published in 2012
Repository
6