Maneesawangwong, N. and Suvanujasiri, A. 2012. The Important Leadership Competencies Of Higher Echelon To Middle-Level Managers In Thailand. International Business & Economics Research Journal (IBER). 11, 2 (Jan. 2012), 223–232. DOI:https://doi.org/10.19030/iber.v11i2.6777.