Peiro-Signes, A., Segarra-Ona, M.- del-V., de-Miguel-Molina, B. and de-Miguel-Molina, M. 2012. Environmentals Proactivity Measurement Tool Validation. International Business & Economics Research Journal (IBER). 11, 13 (Dec. 2012), 1433–1438. DOI:https://doi.org/10.19030/iber.v11i13.7444.