[1. Nicolae Balteş, (coord.), Analiză şi diagnostic financiar, (Sibiu: “Lucian Blaga” University Publishing House, 2010): 25-28.]Search in Google Scholar
[2. Bogdan Mârza, Performanţa prin valoare, (Sibiu: “Lucian Blaga” University Publishing House, 2013): 108-109.]Search in Google Scholar
[3. Silvia Petrescu, Analiză şi diagnostic financiar-contabil: ghid teoretico-aplicativ, (Bucharest: CECCAR Publishing House, 2008): 300-301.]Search in Google Scholar
[4. Diana Elena Vasiu, Analiza performanţei financiare la societăţile listate şi tranzacţionate la Bursa de Valori Bucureşti, (Teză de doctorat, Universitatea “Lucian Blaga”, Sibiu, 2015).]Search in Google Scholar