Vaismoradi, M., Assarroudi, A., Nabavi, F. H., Armat, M. R., & Ebadi, A. (2018). Directed qualitative content analysis: The description and elaboration of its underpinning methods and data analysis process. Journal of Research in Nursing, p. 174498711774166. doi:10.1177/1744987117741667

Vaismoradi, Mojtaba, Abdolghader Assarroudi, Fatemeh Heshmati Nabavi, Mohammad Reza Armat, and Abbas Ebadi. "Directed Qualitative Content Analysis: The Description and Elaboration of Its Underpinning Methods and Data Analysis Process." Journal of Research in Nursing 2018: 174498711774166.

Vaismoradi, Mojtaba, et al. "Directed Qualitative Content Analysis: The Description and Elaboration of Its Underpinning Methods and Data Analysis Process." Journal of Research in Nursing 2018: 174498711774166.