Bahrami, N., M. A. Soleimani, A. Yaghoobzadeh, and H. Ranjbar. “Researcher As an Instrument in Qualitative Research: Challenges and Opportunities”. Advances in Nursing & Midwifery, vol. 25, no. 90, Mar. 2016, pp. 27-37, https://journals.sbmu.ac.ir/en-jnm/article/view/11584.