[1]
Spielberger, C.D., Gonzalez-Reigosa, F., Martinez-Urrutia, A., Natalicio, L.F. and Natalicio, D.S. 2017. The State-Trait Anxiety Inventory. Revista Interamericana de PsicologĂ­a/Interamerican Journal of Psychology. 5, 3 & 4 (Jul. 2017). DOI:https://doi.org/10.30849/rip/ijp.v5i3 & 4.620.