What has the author Hedmann Alberto Sierra Sierra written?

Answer 1

Sela B. Sierra has written:

'Formando al nuevo trabajador social' -- subject(s): Social service, Social work education, Social workers

Answer 2

Hedmann Alberto Sierra Sierra is a Colombian author who has written several books on social issues, education, and cultural history. His works often focus on the impact of colonialism and globalization on marginalized communities in Latin America.

Answer 3

Hedmann Alberto Sierra Sierra has written:

'Desarrollo humano y paz' -- subject(s): Economic policy, Social policy, Regional planning

Answer 4

Eduardo Sierra Barreneche has written:

'Santander, tierra con pasado, presente y futuro' -- subject(s): Description and travel, Social life and customs