Jaime Bejarano Alzate (Author)

Jaime Bejarano Alzate, Bibiana Vélez Medina, Juan Manuel Acevedo Carvajal (Author)

Darío Vélez Botero (Author)

Martha Isabel Marín Salazar, Carlos Adolfo Rengifo Castañeda (Author)

Blanca Hilda Prieto de Pinilla (Author)

Jairo Alonso Herrera Muñoz (Author)

Miguel Ángel Caro Lopera, Carlos Alberto Castrillón, José Rodolfo Rivera (Author)

Humberto De Luna, Consuelo Meza Márquez (Author)

Rigoberto Gil Montoya (Author)

Mario Armando Valencia Cardona (Author)

Luz Elena Cardona Castaño (Author)

Zahyra Camargo Martinez, Miguel Ángel Caro Lopera, Graciela Uribe Álvarez (Author)

Juan David Zambrano Valencia (Author)

Alejandra María Franco Jiménez, José Enver Ayala Zuluaga (Author)

Juan Carlos Ríos Agudelo, Robinson Rengifo Dávila, Hugo Mario Cardona Gil (Author)

María Eugenia Maldonado, María Angélica Ortiz Salazar, Elsa Ruth Giraldo Campuzano (Author)