Robuta

https://www.scirp.org/reference/ReferencesPapers?ReferenceID=1628148 Freudenberger, N.J. (1974) Staff Burnout. Jouranl of Social, 30, 159-165. - References - Scientific... Freudenberger, N.J. (1974) Staff Burnout. Jouranl of Social, 30, 159-165.