Redjem, K., Bouzien, D. and Baamer, T. 2021. The impact of intellectual capital on the performance level of the researcher Professor: An Empirical study of the professors at Ouargla University-Algeria. Dirassat Journal Economic Issue. 12, 1 (Jan. 2021), 497-512. DOI:https://doi.org/10.34118/djei.v12i1.1165.