1.
Saunders, M., Lewis, P., Thornhill, A.: Research methods for business students. Pearson, Harlow, England (2016).
2.
Saunders, M., Lewis, P., Thornhill, A.: Research methods for business students. Pearson, Harlow, England (2016).
3.
Bryman, A., Bell, E.: Business research methods. Oxford University Press, Oxford, United Kingdom (2015).
4.
Blumberg, B., Cooper, D.R., Schindler, P.S.: Business research methods. McGraw-Hill Education, London (2014).
5.
Easterby-Smith, M., Thorpe, R., Jackson, P., Jaspersen, L.J.: Management & business research. SAGE, Los Angeles (2018).
6.
Easterby-Smith: Management & business research. Sage (2018).
7.
Denzin, N.K., Lincoln, Y.S.: Strategies of qualitative inquiry. SAGE, Los Angeles (2013).
8.
Neuman, W.L.: Social research methods: qualitative and quantitative approaches. Pearson, Harlow, Essex (2014).
