Pour, R. K., and K. Vakilian. “The Investigation of the students’ Attitude and Consciousness Degree Regarding the Pregnancy Health in 2013 in Eastern-Azerbaijan Province”. Journal of Research in Biology, Vol. 7, no. 5, July 2017, pp. 2306-15, https://ojs.jresearchbiology.com/index.php/jrb/article/view/449.